Free · Everyday calculations

Fuel Tank Driving Distance Calculator

Estimate travel distance from available fuel and fuel economy.

  • Formula & worked example
  • Private in your browser
  • No signup
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Calculator inputs

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How to use this calculator

  1. Enter the known values in the units shown. Results update as you type.
  2. Edit a calculated value to solve backwards, or lock a value to hold it fixed.
  3. Use the worked example to check the method. Reset restores the starting fields.

Private by default

Inputs and results stay in this browser tab. Bookify does not upload or store the values you enter.

Formula and method

Multiply available fuel by distance traveled per unit of fuel. At 10 km/L, 50 liters supports a theoretical 500 kilometers; at 1.50 per liter, that fuel costs 75.

Distance = fuel quantity × fuel economy; fuel cost = fuel quantity × unit price

Worked example

Enter these known values and leave the other values blank.

Fuel efficiency
10 km/L
Fuel quantity
50 L
Fuel price
1.5 USD / L
Distance
500 km
Trip cost
75 USD

Assumptions and limitations

  • The result is a mathematical range estimate, not a guaranteed usable range. Keep a fuel reserve and account for traffic, terrain, weather and changes in fuel economy.
  • Use the units shown beside each field. This model assumes the stated relationship and does not account for quantities left out of the formula.

Common questions

Can I plan to drive until the tank is empty?

The result is a mathematical range estimate, not a guaranteed usable range. Keep a fuel reserve and account for traffic, terrain, weather and changes in fuel economy.

References

The calculation equations, inverse formulas, units, and input rules were imported from this source. Bookify provides the interface and equation solver.

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