🇮🇳 Fuel & Efficiency Calculator
Fuel Tank Range Calculator
Planning a long stretch between fuel stations? See how far a full tank takes you - and how many km are left in the tank you have right now.
Your Vehicle
Fuel you'd rather not run below. Subtracted from usable range.
Range on Current Fuel
on 21 L in the tank
Full-Tank Range
630 km
Usable to Reserve
255 km
Litres to Fill
21 L
km per Litre Left
15 km
Real-world note
Highway cruising can beat this range; city traffic, cold weather, and AC use cut it. Keep a 60-km buffer as insurance.
How it works.
Frequently asked questions.
How accurate is the fuel gauge for this?
Fuel gauges are approximate and often non-linear - the needle drops slowly at first, then faster near empty. Use the slider as an estimate and keep a safety buffer, especially below a quarter tank.
How far can I drive after the low-fuel light comes on?
Most cars have a reserve of roughly 4-8 litres when the light appears, which is often 50-100 km depending on mileage. It varies by model, so don't rely on it - treat the light as "fill up soon," not "keep going."
Why is my real range lower than this estimate?
The formula uses your entered km/l. City traffic, cold starts, aggressive acceleration, roof racks, heavy loads, and AC use all lower actual mileage, which shortens range. Use your real-world combined km/l for the best estimate.