How to Convert mile per gallon us to gallon us per 100 miles

1. Formula

Fuel economy uses reciprocal conversion: 1 mile per gallon (US) [mpg US] = 100 gallon (US) per 100 miles [gal/100 mi US]. Enter any value for the exact reciprocal result.

2. How it works

Enter your value in mile per gallon (US) [mpg US], apply the formula, and read the result in gallon (US) per 100 miles [gal/100 mi US]. The calculator handles the arithmetic instantly.

3. Examples