Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Automotive
Fuel Economy Calculator
Calculate your vehicle's fuel economy in miles per gallon (MPG) by dividing the distance you drove by the fuel you consumed. Use it to verify your real-world MPG against the manufacturer's EPA rating, compare driving styles, or estimate fuel cost for a trip.
Automotive
Gear Ratio Calculator
Calculate the gear ratio between two meshing gears using their tooth counts. Useful for designing drivetrains, bicycles, RC vehicles, and any mechanical power-transmission system.
Key differences
| Fuel Economy Calculator | Gear Ratio Calculator | |
|---|---|---|
| Category | Automotive | Automotive |
| Inputs required | 2 | 2 |
| Result | Fuel Economy (MPG) | Gear Ratio (:1) |
| What it does | Calculate your vehicle's fuel economy in miles per gallon (MPG) by dividing the distance you drove by the fuel you consumed. Use it to verify your real-world MPG against the manufacturer's EPA rating, compare driving styles, or estimate fuel cost for a trip. | Calculate the gear ratio between two meshing gears using their tooth counts. Useful for designing drivetrains, bicycles, RC vehicles, and any mechanical power-transmission system. |