Kilometers per liter to Miles per US gallon Converter
1 km/L equals 2.3521458 mpg (US), and 1 mpg (US) equals 0.42514371 km/L. Enter a value in either box to convert kilometers per liter to miles per us gallon and back. Formula: km/L = mpg x 1.609344 / 3.785411784 (US) ; L/100km = 100 / (km/L) ; mpg and L/100km are reciprocals.
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1 km/L = 2.3521458 mpg (US)
Results shown are estimates for informational purposes only. Nothing on CalcFlow is financial, tax, legal, or medical advice. Always consult a qualified professional before making important decisions.
Kilometers per liter to Miles per US gallon Conversion Table
| Kilometers per liter | Miles per US gallon |
|---|---|
| 5 km/L | 11.760729 mpg (US) |
| 8 km/L | 18.817167 mpg (US) |
| 10 km/L | 23.521458 mpg (US) |
| 15 km/L | 35.282187 mpg (US) |
| 20 km/L | 47.042917 mpg (US) |
| 25 km/L | 58.803646 mpg (US) |
| 30 km/L | 70.564375 mpg (US) |
| 40 km/L | 94.085833 mpg (US) |
| 50 km/L | 117.60729 mpg (US) |
Miles per US gallon to Kilometers per liter Conversion Table
| Miles per US gallon | Kilometers per liter |
|---|---|
| 5 mpg (US) | 2.1257185 km/L |
| 8 mpg (US) | 3.4011497 km/L |
| 10 mpg (US) | 4.2514371 km/L |
| 15 mpg (US) | 6.3771556 km/L |
| 20 mpg (US) | 8.5028741 km/L |
| 25 mpg (US) | 10.628593 km/L |
| 30 mpg (US) | 12.754311 km/L |
| 40 mpg (US) | 17.005748 km/L |
| 50 mpg (US) | 21.257185 km/L |
Worked example: 10 km/L = 23.521458 mpg (US). A car rated at 30 mpg (US) uses 235.215 / 30 = 7.84 L/100km. The same car in UK mpg is about 36 mpg.
Need other units? Open the full Fuel Economy Converter.
Popular Fuel Economy Conversions
Formula
km/L = mpg x 1.609344 / 3.785411784 (US) ; L/100km = 100 / (km/L) ; mpg and L/100km are reciprocalsUnderstanding Fuel Economy Conversion
Fuel economy is expressed two opposite ways. Miles per gallon and kilometers per liter measure distance per unit of fuel, so higher is better. Liters per 100 kilometers measures fuel per distance, so lower is better, and it is the reciprocal of the others. US and UK gallons differ by about 20 percent, so a UK mpg figure is higher than the US figure for the same car.
Tips and Best Practices
- 1Divide 235.215 by the US mpg figure to get L/100km, and the other way round.
- 2Divide 282.481 by the UK mpg figure to get L/100km.
- 3Compare cars in the same unit, ideally L/100km, to see fuel saved per distance.
Real-World Example
A car rated at 30 mpg (US) uses 235.215 / 30 = 7.84 L/100km. The same car in UK mpg is about 36 mpg.
Common Mistakes to Avoid
- Comparing a US mpg figure with a UK mpg figure directly.
- Assuming a 10 mpg improvement saves the same fuel from 15 to 25 mpg as from 40 to 50 mpg (it does not).
- Dividing instead of using the reciprocal when switching between mpg and L/100km.
How to Use
- Type a number in the Kilometers per liter box.
- The Miles per US gallon result appears instantly; you can also edit the Miles per US gallon box to convert backwards.
- Use the swap button to reverse the direction and Copy result to copy the answer.
Frequently Asked Questions
How many miles per us gallon are in 1 km/L?
How many kilometers per liter are in 1 mpg (US)?
What is the formula to convert kilometers per liter to miles per us gallon?
Is 30 mpg good?
Sources: NIST SP 811 (mile, US gallon); UK imperial gallon = 4.54609 L.