按距离、MPG、油价算行程和年度油费，含通勤和长途。
$37.50
10.71 gal
$0.13/mi
$37.50
Conversion: 1 mile = 1.609 km; 1 gallon = 3.785 L; mpg to L/100km = 235.215 ÷ mpg. Real-world MPG varies with driving conditions, traffic, weather, and cargo.
| Distance | @ 20 mpg | @ 30 mpg | @ 40 mpg |
|---|---|---|---|
| 100 miles | $17.50 | $11.67 | $8.75 |
| 250 miles | $43.75 | $29.17 | $21.88 |
| 500 miles | $87.50 | $58.33 | $43.75 |
| 1000 miles | $175.00 | $116.67 | $87.50 |
行程油费 = 距离 × 油价 / MPG × 2（往返）：
| 车型 | MPG | 300 mi 单程 | 年 15,000 mi |
|---|---|---|---|
| 小型车 (Civic) | 35 | $30 | $1,500 |
| SUV (RAV4) | 28 | $38 | $1,875 |
| 皮卡 (F-150) | 20 | $53 | $2,625 |
| 电动车 (EV) | 120 MPGe | $9 | $438 |
MPG 高速 + 15%、城市 − 10%。油价 2024 平均 $3.30-3.80/gal，波动大。EV 用电量按 kWh × 0.16/度算电费。电动皮卡 0.5-0.7 kWh/mile。
Cross-checked against authoritative formulas (IRS, NIST, ACSM) and updated for 2025/2026 tax years and rates.
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FAQ
Everything you need to know about this calculator. Can't find what you're looking for? Email our team.
At 12,000 miles a year, every 5 mpg of fuel economy is worth roughly $700 a year in gas at $3.50 a gallon — a 25 mpg car burns 480 gallons a year and a 20 mpg car burns 600, so the difference is 120 gallons. Over five years of ownership that is about $3,500, which is usually more than the cost of a used hybrid conversion or a more efficient replacement. Our fuel cost calculator shows the annual figure and the cost per mile for any MPG and fuel price, so you can price the saving before you shop.
How it works
Our fuel cost calculator computes the cost of a road trip from distance, fuel efficiency, current fuel price, and the number of passengers.
Type the one-way or round-trip distance in miles or kilometers. The fuel cost calculator handles the conversion automatically.
Type your vehicle's fuel economy in mpg (US) or L/100km (Canada/Europe). The fuel cost calculator converts between the two. Use your actual MPG if you know it from your own fill-up tracking; otherwise use the EPA combined rating from the window sticker.
Type the local fuel price per gallon or per liter. Add the number of passengers to split the cost evenly if applicable. The fuel cost calculator recomputes everything as you type.
The fuel cost calculator shows total trip cost, gallons of fuel needed, cost per mile, and cost per passenger if splitting. A reference table below shows typical costs at common distances and MPGs.
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