Kilometre per Litre to Miles per US Gallon

Free instant kilometre per litre to miles per us gallon converter. 1 km/L = 2.35215 mpg.

2.35215
Formula
1 km/L = 2.35215 mpg

Common Kilometre per Litre to Miles per US Gallon values

Common Kilometre per Litre to Miles per US Gallon conversion values.
Kilometre per Litre (km/L)Miles per US Gallon (mpg)
12.35215
511.7607
1023.5215
2558.8036
50117.607
100235.215
5001176.07
10002352.15

How does Kilometre per Litre to Miles per US Gallon conversion work?

Type a value in the Kilometre per Litre (km/L) field and the equivalent in Miles per US Gallon (mpg) appears instantly to the right. The math uses the exact formula shown above โ€” no rounding errors, no approximations beyond standard floating-point precision. Use the swap button to flip the units and see the inverse conversion.

Kilometre per Litre. Used in some Asian and South American countries. Higher is better. 20 km/L is excellent; 10 km/L is average.

Miles per US Gallon. The standard fuel-economy unit in the US. HIGHER is better โ€” 30 mpg is decent; 50+ mpg is excellent.

โšก Instant results

No submit button โ€” the result updates as you type. Math runs entirely in your browser, so itโ€™s as fast as your device.

๐Ÿ“ฑ Use on any device

Works in any modern browser โ€” Mac, Windows, Linux, iPhone, Android, tablets. No installation, no signup.

๐ŸŽฏ Accurate conversions

Conversion factors come from the official standard (NIST, BIPM, ISO definitions where applicable). Values are precise to standard floating-point limits.

๐ŸŽ Always free, no signup

Free, every time. No account, no email, no โ€œtrialโ€ that becomes paid. Ad-supported so you never have to pay.

Frequently asked

What is the formula for converting Kilometre per Litre to Miles per US Gallon?+
The formula is: 1 km/L = 2.35215 mpg. Type any value into the calculator above and the result appears instantly.
How do I convert Miles per US Gallon back to Kilometre per Litre?+
Click the swap button (โ‡„) above to go to the Miles per US Gallon โ†’ Kilometre per Litre converter, or use the inverse formula derived from the one shown.
How accurate is the conversion?+
Conversion factors used here are exact rational values from NIST SP 811 and the BIPM SI brochure (e.g. 1 ft = 0.3048 m exactly, 1 lb = 0.45359237 kg exactly). Trailing-digit differences vs hand calculation come only from binary floating-point representation, never from the conversion factor itself.
Where do these conversion factors come from?+
Length and mass factors come from the 1959 international yard-and-pound agreement; SI base units (metre, kilogram, second, kelvin) come from the 2019 BIPM redefinition; energy and pressure factors are NIST SP 811 reference values. Each editorial section above lists the specific source for that category.
Can I copy the conversion factor for use elsewhere?+
Yes. The factor in the formula above is the exact rational value used internally; copying it into Excel or another tool reproduces the result to floating-point precision.

Related fuel economy tools