Skip to content
Open calculators

Truck Fuel Economy Calculator

Measure actual truck fuel economy from miles traveled and gallons consumed over the same period, with MPG and gallons per 100 miles results.

Inputs

Distance and fuel measurement

Range: at least 0.01 mi

Use the odometer or trip-meter distance over the same period as the fuel measurement.

Range: at least 0 US gal

Use total U.S. gallons added. If start and end tank levels are effectively equal, this approximates fuel consumed; otherwise enable tank-level adjustment.

When enabled, enter fuel already in the tank at both measurement boundaries. Use measured gallons, not gauge percentages.

Range: at least 0 US gal

Estimated or measured U.S. gallons on board at the beginning of the mileage period.

Range: at least 0 US gal

Estimated or measured U.S. gallons on board at the end of the mileage period.

Result

Estimated fuel consumed (US gal)
—
Fuel consumption (US gal/100 mi)
—
Measured fuel economy (mi/US gal)
—
Measurement note
—

Fuel-use formulas

Estimated fuel consumed (US gal)
—
Measured fuel economy (mi/US gal)
—
Fuel consumption (US gal/100 mi)
—

Related calculators

Estimates depend on the inputs and assumptions shown on each tool. Verify important figures against your records, contracts, and current official requirements.