通勤碳排放计算器
使用通勤碳排放计算器估算每日上下班出行的CO₂排放量。比较驾车、公交、地铁和骑行等不同方式的碳足迹，找到更环保的通勤方案。
Annual Commute CO2
2.38 metric tons
Annual Commute CO2 vs Work Weeks per Year
公式
How to Calculate Commute Emissions
Your daily commute can be a significant part of your personal carbon footprint.
Formula
Annual CO2 = (Distance * 2 * Days/Week * Weeks/Year) / MPG * 19.6 lbs/gallon / 2,204.6
Multiply one-way distance by 2 for round trip, divide total miles by fuel economy to get gallons, then multiply by 19.6 lbs CO2 per gallon.
计算示例
A 15-mile one-way commute, 5 days/week, 50 weeks/year, in a 28 mpg car.
- 01Annual miles: 15 * 2 * 5 * 50 = 7,500 miles
- 02Gallons used: 7,500 / 28 = 267.9 gallons
- 03CO2: 267.9 * 19.6 = 5,250 lbs = 2.38 metric tons/year
常见问题
How much CO2 does an average commute produce?
The average US commute of 16 miles each way at 28 mpg produces roughly 2.5 metric tons of CO2 per year.
How much would carpooling reduce emissions?
Carpooling with one other person cuts per-person commute emissions by 50%. A four-person carpool cuts it by 75%.
What about public transit emissions?
Public buses emit about 0.06 lbs CO2 per passenger-mile, and rail about 0.02 lbs, far lower than solo driving.