Fuel Economy
Browse Fuel Economy conversions1 US gallon per 100 miles = 120.094993 mile per Imperial gallon
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Formula Summary
Result: 1 US gallon per 100 miles = 120.094993 mile per Imperial gallon
Formula: (42.514370743027 / 1) / 0.354006189935
Rounding: Displayed to 6 decimal places by default, trimmed for readability. Use Detailed or Scientific for more precision.
Real World Context
120.094993 mile per Imperial gallon is approximately:
- within exceptionally efficient combustion or hybrid vehicle territory
- would use about 11.8 liters over a 500-kilometer trip if the same economy were maintained
Unit Story
US gallons per 100 miles
Gallons per 100 miles makes trip consumption direct: the number is the US gallons needed to travel 100 miles at the stated economy.
Miles per Imperial gallon
Imperial MPG uses a 4.54609-liter gallon. The same vehicle therefore shows a larger Imperial MPG number than US MPG.
How This Conversion Works
US gallon per 100 miles and mile per Imperial gallon are both used for fuel economy conversions. This page converts 1 US gallon per 100 miles into 120.094993 mile per Imperial gallon using the formula shown below.
Use this result for quick checks, comparisons, and everyday reference. For work that depends on exact precision, review the rounding setting and the assumption note before using the number.
The precision controls let you switch between a shorter result, the standard readable result, and scientific notation when the value is very large or very small.
Unit Notes
- US gallon per 100 miles (US gal/100mi) measures fuel used over a fixed distance, so a lower number indicates better fuel economy.
- mile per Imperial gallon (mpg Imp) measures distance traveled per unit of fuel, so a higher number indicates better fuel economy.
Questions
How do you convert US gallon per 100 miles to mile per Imperial gallon?
This page converts US gallon per 100 miles to mile per Imperial gallon using this formula: (42.514370743027 / 1) / 0.354006189935.
What is 1 US gallon per 100 miles in mile per Imperial gallon?
1 US gallon per 100 miles equals 120.094993 mile per Imperial gallon.
How many decimals does this converter show?
Displayed to 6 decimal places by default, trimmed for readability. Use Detailed or Scientific for more precision. The precision buttons can also show a shorter result or scientific notation.
Equivalent Values
Nearby Values
Full Details
- Formula
- (42.514370743027 / 1) / 0.354006189935
- Rounding
- Displayed to 6 decimal places by default, trimmed for readability. Use Detailed or Scientific for more precision.
- Assumption
- Fuel-economy conversions compare idealized distance and fuel volume. US gallons equal 3.785411784 liters; Imperial gallons equal 4.54609 liters. Actual consumption varies with vehicle, load, speed, weather, terrain, and driving conditions.
