Formula
range=(available−reserve)/consumption × 100.
- Use the units shown beside each field.
- Results update automatically whenever you change an input.
- Displayed values use up to four decimal places, or scientific notation for very small or large numbers. Calculations use standard floating-point arithmetic; exact integer and fraction tools identify their own precision rules.
- Constant consumption estimate; terrain, temperature, speed and unusable tank volume can change range.
Example Calculation
Example inputs
- Fuel available: 50 L
- Reserved fuel: 5 L
- Consumption: 6 L/100 km
50 L available, 5 L reserve and 6 L/100 km yield 750 km.
Frequently asked questions
How do I use this calculator?
Enter fuel available, reserved fuel, consumption. The result updates automatically. Use Reset to restore the example values.
What method does it use?
range=(available−reserve)/consumption × 100.. Constant consumption estimate; terrain, temperature, speed and unusable tank volume can change range.
Why might a rounded result differ?
The calculation keeps full numeric precision internally, then rounds the displayed result. Rounding intermediate steps by hand can produce a slightly different answer.
Are my inputs saved online?
No. This calculator processes your inputs in your browser. A recently used list stores only calculator names on this device, not your entered values.
Check the assumptions and units before using this result. Read about calculation methods.