# TrimCarbon

> TrimCarbon sells carbon offsets to general-aviation pilots, flight schools and flying clubs, priced per kg of CO₂ from their flight hours. Pilots pick an aircraft and the hours they fly, or import their logbook; TrimCarbon buys and retires independently rated carbon credits for that amount of CO₂ through the carbon credit supplier that fills its orders, and issues a certificate for every order. TrimCarbon is operated by Raccoon Ventures Inc., Laval, Quebec, Canada.

The site is available in English (default, no URL prefix), French (/fr), German (/de), Brazilian Portuguese (/pt), Spanish (/es) and Italian (/it). Prices are in US dollars.

Every page below has a Markdown copy: add .md to its URL (index.md for a home page), for example https://trimcarbon.com/pricing.md or https://trimcarbon.com/index.md.

## How emissions are calculated

- CO₂ = flight hours × the aircraft type's fuel burn per hour (about 75% power in cruise) × the fuel's emission factor.
- Avgas: 8.31 kg of CO₂ per US gallon (about 2.20 kg per litre), the US EPA factor.
- Jet fuel: 3.15 kg of CO₂ per kg of fuel (ICAO's calculator uses 3.16).
- Figures cover burning the fuel only, not producing or transporting it, and not non-CO₂ effects such as contrails.
- Example: a Cessna 172 Skyhawk burns about 10.6 US gallons of avgas an hour, about 88 kg of CO₂.
- Airliners are listed per passenger; business jets for the whole aircraft.

## Pricing

- Monthly plan: $0.036 per kg of CO₂, billed each month. Minimum 140 kg a month (about $5.04).
- Yearly plan: $0.035 per kg of CO₂, billed once a year, paid upfront. Minimum 250 kg a year (about $8.75).
- Volume rates (yearly plan only) apply to every kg when the year's amount passes a threshold: 5% off above 1.5 tonnes, 10% off above 3 tonnes, 15% off above 5 tonnes. The monthly plan has one rate.
- One-time purchase: $40 a tonne (1,000 kg), in whole tonnes from 1 to 15, with no subscription.
- Above 15 tonnes a year (schools, clubs, fleets): custom pricing on request.
- Plans renew automatically until cancelled, and can be cancelled anytime from the account.
- Example: an hour in a Cessna 172 Skyhawk costs about $3.17 to offset on the monthly plan.

## How the credits are chosen

- Credits are bought through the supplier that fills TrimCarbon's orders. The supplier builds diversified portfolios guided by the Oxford Offsetting Principles.
- The supplier says fewer than 3% of projects on the market are eligible for its portfolios, and only buys credits from projects highly rated by at least one of four rating agencies: Sylvera, BeZero, Calyx Global or Renoster.
- Credits are issued and retired on public registries such as Verra, Gold Standard, ACR (American Carbon Registry), Climate Action Reserve and Puro.earth.
- Portfolios mix emission reductions (avoidance) with a smaller share of carbon removals. Avoided emissions are not removed from the atmosphere, and nature-based removals can be reversed, so offsetting does not cancel out a flight's emissions. Cutting fuel burn comes first.

## Key pages

- [Home](https://trimcarbon.com/): what TrimCarbon is and how it works
- [Pricing](https://trimcarbon.com/pricing): price calculator and rate card
- [Emissions calculator](https://trimcarbon.com/emissions-calculator): CO₂ by aircraft type and flight hours
- [Logbook import](https://trimcarbon.com/import-logbook): CO₂ from a logbook export, read in the browser and never uploaded
- [How credits are vetted](https://trimcarbon.com/process): the supplier's project screening, ratings and registries
- [Registry](https://trimcarbon.com/registry): certificates of retired credits
- [Who it is for](https://trimcarbon.com/for)
- [For Individual Pilots](https://trimcarbon.com/for/individuals)
- [For Flight Schools](https://trimcarbon.com/for/flight-schools)
- [For Flying Clubs](https://trimcarbon.com/for/clubs)
- [For Gliding Clubs](https://trimcarbon.com/for/glider-clubs)
- [For Skydiving](https://trimcarbon.com/for/skydiving)
- [For Helicopter Schools](https://trimcarbon.com/for/helicopter-schools)
- [Fleet and high-volume estimates](https://trimcarbon.com/contact/high-volume)
- [Our story](https://trimcarbon.com/story)
- [Contact](https://trimcarbon.com/contact)

## Logbook import

- Drop a logbook export to get the CO₂ of every logged flight, by aircraft type and by year, a yearly plan sized on the last 12 months, and one-time options. The browser reads the file; it is never uploaded or stored.
- [ForeFlight logbook](https://trimcarbon.com/import-logbook/foreflight): export steps and the columns read
- [Garmin Pilot logbook](https://trimcarbon.com/import-logbook/garmin-pilot): export steps and the columns read
- [LogTen logbook](https://trimcarbon.com/import-logbook/logten): export steps and the columns read

## Learn to fly: license hours and training CO₂

- [Learn to fly](https://trimcarbon.com/learn-to-fly): minimum hours and training CO₂ for each license
- [FAA pilot licenses: hours, fuel and CO₂](https://trimcarbon.com/learn-to-fly/faa)
- [FAA private pilot license](https://trimcarbon.com/learn-to-fly/faa/ppl)
- [FAA commercial pilot license](https://trimcarbon.com/learn-to-fly/faa/cpl)
- [FAA sport pilot license](https://trimcarbon.com/learn-to-fly/faa/sport-pilot)
- [Transport Canada pilot licences, permits and ratings: hours and CO₂](https://trimcarbon.com/learn-to-fly/transport-canada)
- [Transport Canada Private Pilot Licence](https://trimcarbon.com/learn-to-fly/transport-canada/ppl)
- [Transport Canada Commercial Pilot Licence](https://trimcarbon.com/learn-to-fly/transport-canada/cpl)
- [Transport Canada Recreational Pilot Permit](https://trimcarbon.com/learn-to-fly/transport-canada/recreational-permit)
- [Transport Canada night rating](https://trimcarbon.com/learn-to-fly/transport-canada/night-rating)
- [Transport Canada float rating](https://trimcarbon.com/learn-to-fly/transport-canada/float-rating)
- [EASA pilot licences and ratings: hours, fuel and CO₂](https://trimcarbon.com/learn-to-fly/easa)
- [EASA Private Pilot Licence](https://trimcarbon.com/learn-to-fly/easa/ppl)
- [EASA Commercial Pilot Licence](https://trimcarbon.com/learn-to-fly/easa/cpl)
- [EASA Light Aircraft Pilot Licence](https://trimcarbon.com/learn-to-fly/easa/lapl)
- [EASA night rating](https://trimcarbon.com/learn-to-fly/easa/night-rating)
- [UK CAA pilot licences: hours, fuel and CO₂](https://trimcarbon.com/learn-to-fly/uk-caa)
- [UK CAA Private Pilot Licence](https://trimcarbon.com/learn-to-fly/uk-caa/ppl)
- [UK CAA Commercial Pilot Licence](https://trimcarbon.com/learn-to-fly/uk-caa/cpl)

## Aircraft categories

- [Aircraft categories](https://trimcarbon.com/emissions-calculator/category): CO₂ per hour by kind of aircraft
- [CO₂ emissions of trainer aircraft](https://trimcarbon.com/emissions-calculator/category/trainers)
- [CO₂ emissions of touring aircraft](https://trimcarbon.com/emissions-calculator/category/touring)
- [CO₂ emissions of high-performance aircraft](https://trimcarbon.com/emissions-calculator/category/high-performance)
- [CO₂ emissions of multi-engine aircraft](https://trimcarbon.com/emissions-calculator/category/multi-engine)
- [CO₂ emissions of bush and float planes](https://trimcarbon.com/emissions-calculator/category/bush-and-floats)
- [CO₂ emissions of vintage taildraggers](https://trimcarbon.com/emissions-calculator/category/vintage-taildraggers)
- [CO₂ emissions of aerobatic aircraft](https://trimcarbon.com/emissions-calculator/category/aerobatic)
- [CO₂ emissions of helicopters](https://trimcarbon.com/emissions-calculator/category/helicopters)

## Fuels

- [CO₂ by fuel](https://trimcarbon.com/emissions-calculator/fuel): emission factors per gallon and litre, with a converter
- [Avgas 100LL CO₂ per gallon and liter](https://trimcarbon.com/emissions-calculator/fuel/avgas-100ll)
- [Mogas CO₂ per gallon and liter](https://trimcarbon.com/emissions-calculator/fuel/mogas)
- [Jet A and Jet A-1 CO₂ per gallon, liter and kg](https://trimcarbon.com/emissions-calculator/fuel/jet-a)

## Per-aircraft CO₂ pages

- [Cessna 172 Skyhawk](https://trimcarbon.com/emissions-calculator/cessna-172-skyhawk): 88 kg CO₂ per hour
- [Cessna 150/152](https://trimcarbon.com/emissions-calculator/cessna-150-152): 51 kg CO₂ per hour
- [Piper PA-28 Cherokee](https://trimcarbon.com/emissions-calculator/piper-pa-28-cherokee): 87 kg CO₂ per hour
- [Diamond DA40](https://trimcarbon.com/emissions-calculator/diamond-da40): 83 kg CO₂ per hour
- [Piper PA-38 Tomahawk](https://trimcarbon.com/emissions-calculator/piper-pa-38-tomahawk): 54 kg CO₂ per hour
- [Diamond DA20-C1](https://trimcarbon.com/emissions-calculator/diamond-da20): 57 kg CO₂ per hour
- [Tecnam P2008](https://trimcarbon.com/emissions-calculator/tecnam-p2008): 44 kg CO₂ per hour
- [Tecnam P2002 Sierra](https://trimcarbon.com/emissions-calculator/tecnam-p2002-sierra): 44 kg CO₂ per hour
- [Aquila A211](https://trimcarbon.com/emissions-calculator/aquila-a211): 48 kg CO₂ per hour
- [Robin DR400/120](https://trimcarbon.com/emissions-calculator/robin-dr400-120): 55 kg CO₂ per hour
- [Piper PA-28R Arrow](https://trimcarbon.com/emissions-calculator/piper-pa-28r-arrow): 87 kg CO₂ per hour
- [Cessna 182 Skylane](https://trimcarbon.com/emissions-calculator/cessna-182-skylane): 112 kg CO₂ per hour
- [Cessna 210 Centurion](https://trimcarbon.com/emissions-calculator/cessna-210-centurion): 130 kg CO₂ per hour
- [Robin DR400/180 Régent](https://trimcarbon.com/emissions-calculator/robin-dr400-180-regent): 86 kg CO₂ per hour
- [Cirrus SR20](https://trimcarbon.com/emissions-calculator/cirrus-sr20): 100 kg CO₂ per hour
- [Cessna 177 Cardinal](https://trimcarbon.com/emissions-calculator/cessna-177-cardinal): 83 kg CO₂ per hour
- [Grumman AA-5B Tiger](https://trimcarbon.com/emissions-calculator/grumman-aa-5b-tiger): 90 kg CO₂ per hour
- [Piper PA-32 Saratoga](https://trimcarbon.com/emissions-calculator/piper-pa-32-saratoga): 133 kg CO₂ per hour
- [Beechcraft Sundowner](https://trimcarbon.com/emissions-calculator/beechcraft-sundowner): 91 kg CO₂ per hour
- [Beechcraft Bonanza](https://trimcarbon.com/emissions-calculator/beechcraft-bonanza): 134 kg CO₂ per hour
- [Mooney M20](https://trimcarbon.com/emissions-calculator/mooney-m20): 90 kg CO₂ per hour
- [Cirrus SR22](https://trimcarbon.com/emissions-calculator/cirrus-sr22): 136 kg CO₂ per hour
- [Socata TB-20 Trinidad](https://trimcarbon.com/emissions-calculator/socata-tb-20-trinidad): 116 kg CO₂ per hour
- [Cessna 177RG Cardinal RG](https://trimcarbon.com/emissions-calculator/cessna-177rg-cardinal-rg): 90 kg CO₂ per hour
- [Piper PA-24 Comanche](https://trimcarbon.com/emissions-calculator/piper-pa-24-comanche): 117 kg CO₂ per hour
- [Beechcraft Sierra](https://trimcarbon.com/emissions-calculator/beechcraft-sierra): 102 kg CO₂ per hour
- [Piper PA-46 Malibu Mirage](https://trimcarbon.com/emissions-calculator/piper-pa-46-malibu-mirage): 166 kg CO₂ per hour
- [Commander 114B](https://trimcarbon.com/emissions-calculator/commander-114b): 119 kg CO₂ per hour
- [Piper PA-44 Seminole](https://trimcarbon.com/emissions-calculator/piper-pa-44-seminole): 194 kg CO₂ per hour
- [Beechcraft Baron 58](https://trimcarbon.com/emissions-calculator/beechcraft-baron-58): 266 kg CO₂ per hour
- [Piper PA-30 Twin Comanche](https://trimcarbon.com/emissions-calculator/piper-pa-30-twin-comanche): 143 kg CO₂ per hour
- [Piper PA-34 Seneca](https://trimcarbon.com/emissions-calculator/piper-pa-34-seneca): 241 kg CO₂ per hour
- [Diamond DA42 Twin Star](https://trimcarbon.com/emissions-calculator/diamond-da42): 133 kg CO₂ per hour
- [Diamond DA62](https://trimcarbon.com/emissions-calculator/diamond-da62): 144 kg CO₂ per hour
- [Tecnam P2006T](https://trimcarbon.com/emissions-calculator/tecnam-p2006t): 85 kg CO₂ per hour
- [Cessna 206 Stationair](https://trimcarbon.com/emissions-calculator/cessna-206-stationair): 137 kg CO₂ per hour
- [Piper PA-25 Pawnee](https://trimcarbon.com/emissions-calculator/piper-pa-25-pawnee): 116 kg CO₂ per hour
- [Piper PA-18 Super Cub](https://trimcarbon.com/emissions-calculator/piper-pa-18-super-cub): 75 kg CO₂ per hour
- [de Havilland Canada DHC-2 Beaver](https://trimcarbon.com/emissions-calculator/de-havilland-canada-dhc-2-beaver): 237 kg CO₂ per hour
- [Maule M-7-235](https://trimcarbon.com/emissions-calculator/maule-m-7): 108 kg CO₂ per hour
- [Cessna 185 Skywagon](https://trimcarbon.com/emissions-calculator/cessna-185-skywagon): 131 kg CO₂ per hour
- [Aviat Husky A-1C](https://trimcarbon.com/emissions-calculator/aviat-husky-a-1c): 79 kg CO₂ per hour
- [ICON A5](https://trimcarbon.com/emissions-calculator/icon-a5): 32 kg CO₂ per hour
- [Piper J-3 Cub](https://trimcarbon.com/emissions-calculator/piper-j-3-cub): 37 kg CO₂ per hour
- [Aeronca 7AC Champ](https://trimcarbon.com/emissions-calculator/aeronca-7ac-champ): 37 kg CO₂ per hour
- [Cessna 170](https://trimcarbon.com/emissions-calculator/cessna-170): 80 kg CO₂ per hour
- [Cessna 140](https://trimcarbon.com/emissions-calculator/cessna-140): 47 kg CO₂ per hour
- [Cessna 195 Businessliner](https://trimcarbon.com/emissions-calculator/cessna-195-businessliner): 119 kg CO₂ per hour
- [Ercoupe 415](https://trimcarbon.com/emissions-calculator/ercoupe-415): 47 kg CO₂ per hour
- [Piper PA-22 Tri-Pacer](https://trimcarbon.com/emissions-calculator/piper-pa-22-tri-pacer): 66 kg CO₂ per hour
- [Stinson 108 Voyager](https://trimcarbon.com/emissions-calculator/stinson-108-voyager): 83 kg CO₂ per hour
- [American Champion Citabria 7ECA](https://trimcarbon.com/emissions-calculator/american-champion-citabria): 56 kg CO₂ per hour
- [American Champion Super Decathlon](https://trimcarbon.com/emissions-calculator/american-champion-super-decathlon): 80 kg CO₂ per hour
- [Extra 300L](https://trimcarbon.com/emissions-calculator/extra-300): 151 kg CO₂ per hour
- [Aviat Pitts S-2](https://trimcarbon.com/emissions-calculator/aviat-pitts-s-2): 120 kg CO₂ per hour
- [Robinson R22 Beta II](https://trimcarbon.com/emissions-calculator/robinson-r22): 66 kg CO₂ per hour
- [Robinson R44 Raven II](https://trimcarbon.com/emissions-calculator/robinson-r44): 125 kg CO₂ per hour
- [Guimbal Cabri G2](https://trimcarbon.com/emissions-calculator/guimbal-cabri-g2): 79 kg CO₂ per hour
- [Schweizer 300CB](https://trimcarbon.com/emissions-calculator/schweizer-300): 87 kg CO₂ per hour

## Guides

- [How to offset CO₂ with Claude or ChatGPT](https://trimcarbon.com/expertise/how-to-offset-co2-with-claude-or-chatgpt): Ask Claude or ChatGPT what your flying emits, from hours, fuel or your logbook export, then offset it on trimcarbon.com and check the certificate from the chat. Four steps, with the prompts to use.
- [A carbon offset API for flight schools, clubs and fleets](https://trimcarbon.com/expertise/carbon-offset-api): Offset every lesson, every day's flying or every fuel uplift from your own software. How a carbon offset API works, what it costs, and when a plan is the better fit.
- [Are carbon offsets a scam? The evidence, from a pilot who sells them](https://trimcarbon.com/expertise/are-carbon-offsets-a-scam): Not as a category. But a 2024 study of 2,346 projects found under 16% of their credits were real emission reductions, and one developer admitted reporting false data. Here are the red flags, and why no offset cancels a flight.
- [Carbon offsets for pilots: how they work and how to choose credible ones](https://trimcarbon.com/expertise/carbon-offsets-for-pilots): What a carbon credit is, where offsetting has gone wrong, and five checks to run before you pay to offset your flying.
- [A practical sustainability plan for flight schools and flying clubs](https://trimcarbon.com/expertise/flight-school-and-club-sustainability): Measure your fleet's emissions from the fuel records you already keep, cut what you can through training standards, offset the rest, and describe it in a way that stands up to scrutiny.
- [How to calculate your flight's CO₂ emissions](https://trimcarbon.com/expertise/how-to-calculate-flight-emissions): The formula, the emission factors for avgas and jet fuel, three ways to get your fuel figure, and a worked example for a year of flying a Cessna 172.
- [How to cut your aircraft's fuel burn and CO₂](https://trimcarbon.com/expertise/reduce-aircraft-fuel-burn): Every US gallon of avgas you don't burn is 8.31 kg of CO₂ you don't emit. Leaning, power settings, altitude, ground time and maintenance, plus what unleaded fuel and electric trainers will and won't change.
- [Forget “carbon neutral”: what pilots, flight schools and clubs can say after offsetting](https://trimcarbon.com/expertise/carbon-neutral-claims-after-offsetting): EU rules that apply from 27 September 2026 ban calling a flight, a lesson or a rental hour “carbon neutral” because of offsetting. Who the rules reach, and the wording pilots, flight schools and clubs can use instead.
- [I'm a pilot who cares about the climate. Here's how I live with both](https://trimcarbon.com/expertise/flying-with-a-climate-conscience): Can you love flying and keep a climate conscience? A private pilot's answer: what 170 hours cost in CO₂, why guilt doesn't help, and the habits that do.
- [How much does it cost to offset a flight hour as a GA pilot?](https://trimcarbon.com/expertise/cost-to-offset-a-flight-hour): About $1.30 to $4.90 an hour in common piston aircraft, or $3.17 in a Cessna 172. The math by plane and by year, and why carbon credit prices vary.
- [Do small planes make contrails? Why a 172 is (mostly) a CO₂ story](https://trimcarbon.com/expertise/do-small-planes-make-contrails): A Cessna 172's ceiling sits about 12,900 feet below the lowest altitude where jet exhaust makes contrails on a standard day. What that means for the 1.7× and 3× multipliers some calculators add, and for what you offset.
- [Unleaded avgas fixes lead, not CO₂: what each new fuel changes for your plane](https://trimcarbon.com/expertise/unleaded-avgas-saf-and-co2): Unleaded avgas barely moves your CO₂ per hour. By Diamond's figures, a Jet-A diesel DA40 cuts it by about 15% to 27%. What each new fuel changes, with a checklist for owners, renters, schools and clubs.
- [Trace your carbon offset to the registry: a five-minute check](https://trimcarbon.com/expertise/how-to-verify-carbon-offsets): A certificate is only as good as the registry record behind it. Here is how to trace your offset to that record, why your name usually isn't on it, and how to read a rating.
- [What learning to fly costs the climate: 3 to 6 tonnes of CO₂, and how to halve it](https://trimcarbon.com/expertise/carbon-footprint-of-learning-to-fly): In the US, a private pilot license typically takes 50 to 70 hours (AOPA; the FAA says about 75), or about 3 to 6 tonnes of CO₂ in a common trainer. Here is the math by trainer, how to cut it by about half, and where electric training stands.
- [General aviation's carbon footprint: tiny as a sector, big per pilot](https://trimcarbon.com/expertise/general-aviation-carbon-footprint): What general aviation emits, with sources: business jets, piston aircraft, a club fleet and your own logbook, plus the gaps nobody has measured.
- [Flying vs driving: the CO₂ of a small plane, a car and an airline seat](https://trimcarbon.com/expertise/flying-vs-driving-co2): Per-seat CO₂ for six piston types, from a Cessna 152 to a Bonanza, next to a car, an SUV and an airline seat, with two worked trips and the method.
- [How to make up for the CO₂ of your flying: a 5-step plan for pilots](https://trimcarbon.com/expertise/how-to-offset-your-flying): You can't take back a flight's CO₂, but you can burn less, fund rated carbon credits for the rest and keep the proof. Five steps with real numbers, plus a fleet version for flight schools and clubs.
- [How many trees does it take to offset a flight hour in a Cessna?](https://trimcarbon.com/expertise/how-many-trees-to-offset-a-flight): How many trees offset a flight? The math for an hour, a 100-hour year and a school fleet, why planted trees lag behind your flying, and how trees compare with registered credits.

## Developers

- [Offset API](https://trimcarbon.com/developers): buy offsets from an organization's own software, paid from a prepaid balance
- [API documentation](https://trimcarbon.com/docs), with its own [llms.txt](https://trimcarbon.com/docs/llms.txt)

## AI assistants (MCP)

- [TrimCarbon in ChatGPT and Claude](https://trimcarbon.com/ai): how to add the MCP server, what it can do and what it receives
- MCP server (Streamable HTTP, no key): https://mcp.trimcarbon.com/mcp for Claude and other MCP clients; https://mcp.trimcarbon.com/chatgpt for ChatGPT

## Optional

- [Terms and conditions](https://trimcarbon.com/legal/terms-and-conditions)
- [Privacy policy](https://trimcarbon.com/legal/privacy-policy)
- [Offset disclosures](https://trimcarbon.com/legal/offset-disclosures)
- [Sitemap](https://trimcarbon.com/sitemap.xml)