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MPG to L/100km Converter

Convert miles per gallon to liters per 100 kilometers and L/100km to MPG. Inverse fuel economy converter with formula.

mpg

Liters per 100km

9.41

L/100km

25 mpg = 9.41 L/100km

L/100km = 235.215 ÷ mpg

Miles per Gallon to Liters per 100km: To convert miles per gallon to liters per 100km, apply L/100km = 235.215 ÷ mpg. Unlike linear unit conversions, miles per gallon and liters per 100km use different zero points, so a fixed multiplier is not sufficient.

How to Convert Miles per Gallon to Liters per 100km

Converting between miles per gallon and liters per 100km requires both a scale factor and an offset because the two scales use different zero points. The formula below handles both adjustments.

Conversion Formula

  • Miles per Gallon to Liters per 100km: L/100km = 235.215 ÷ mpg
  • Liters per 100km to Miles per Gallon: mpg = 235.215 ÷ L/100km

Miles per Gallon to Liters per 100km Conversion Chart

Miles per Gallon (mpg)Liters per 100km (L/100km)
0.12352.15
0.25940.86
0.5470.43
1235.215
2117.6075
378.405
547.043
1023.5215
2011.76075
259.4086
504.7043
1002.35215
2500.94086
10000.235215

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US MPG to UK MPG Converter

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UK MPG to US MPG Converter

Convert UK miles per gallon (imperial) to US miles per gallon.

km/L to L/100km Converter

Convert kilometers per liter to liters per 100 kilometers.

FAQ

Why is the MPG to L/100km conversion not a simple multiplication?

MPG measures distance per unit of fuel (higher is better), while L/100km measures fuel per unit of distance (lower is better). They have an inverse relationship, so you divide 235.215 by the MPG value.

What is a good fuel economy in L/100km?

A compact car typically achieves 6-8 L/100km. Hybrids can reach 4-5 L/100km, while large SUVs may consume 10-14 L/100km.

Where does the 235.215 constant come from?

It combines the conversion between US gallons and liters (3.78541 L/gal) with miles to kilometers (1.60934 km/mi). The constant is 3.78541 × 100 ÷ 1.60934 = 235.215.

Is this conversion for US or UK gallons?

This converter uses US gallons (3.78541 liters). UK imperial gallons are larger (4.54609 liters), giving a different conversion constant of 282.481.

How do I convert 25 MPG to L/100km?

235.215 ÷ 25 = 9.41 L/100km. A car getting 25 MPG uses about 9.41 liters of fuel every 100 kilometers.

How do you convert miles per gallon to liters per 100km?

Apply the formula L/100km = 235.215 ÷ mpg. For example, miles per gallon of 0 corresponds to Infinity liters per 100km.

How do you convert liters per 100km back to miles per gallon?

Use the inverse formula: mpg = 235.215 ÷ L/100km.

Why isn't miles per gallon-to-liters per 100km a simple multiplication?

Miles per Gallon and Liters per 100km use different zero points, so the relationship includes both a scale factor and an offset. The scale factor alone gives the rate of change but not the absolute value.