Fuel Cost Calculator
Trip fuel cost — supports km/litre and US MPG efficiency.
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About this calculator
Real-world consumption beats or trails rated figures by ±20% with traffic, AC load and driving style. Track your own tank-to-tank average once — it beats brochure numbers for planning.
The MPG path converts via the standard 235.215 constant so American-spec vehicles work without mental gymnastics.
Formula
km/L: litres = km ÷ km/L. US MPG: L = (km ÷ 100) × 235.215/mpg.
Frequently Asked Questions
Diesel vs petrol trip economics?
Diesel costs similar per litre but yields 15–30% better efficiency; high-annual-km drivers recover diesel's premium within a few years.
How do tolls factor in?
They don't here — add tolls manually; NHAI FASTag statements give exact monthly figures for commute routes.