Fuel Range
See how many miles of driving remain at the current fuel level.
About Fuel Range
Fuel left in the tank is multiplied by economy to give range, which then divides by daily use into days left. Knowing true range keeps you from gambling on gas stations while letting you time cheaper fill ups.
Formula
Fuel Range
Range = fuel remaining x mpg; days = range / daily miles
- daily driving
- Average miles driven each day
Worked example
With the default values below, Fuel Range returns Range of 216. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Tank capacityminimum 0.1 gal
- 14 gal
- Fuel levelaccepts 0–100 %
- 55 %
- Fuel economyminimum 0.1 mpg
- 28 mpg
- Daily drivingminimum 0 mi
- 30 mi
Results
- Range
- 216 mi
- Fuel Remaining
- 7.70 gal
- Days Until Empty
- 7.2
Step by step
- 1Values used
- 2Fuel Range
- 3Range= 216 mi
- 4Fuel Remaining= 7.70 gal
- 5Days Until Empty= 7.2
Assumptions and limits
- The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
- Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
How is Fuel Range calculated?
Range = fuel remaining x mpg; days = range / daily miles Fuel left in the tank is multiplied by economy to give range, which then divides by daily use into days left.
Why does Fuel Range matter?
Knowing true range keeps you from gambling on gas stations while letting you time cheaper fill ups.
What values do I need to enter?
This calculator takes 4 inputs: Tank capacity, Fuel level, Fuel economy, Daily driving. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.