Fuel & Efficiency Calculators
Fuel & Efficiency calculators and planning tools
15 Calculators
Instant Results
Free to Use
automotive & transportationfuel & efficiencygas mileage calculator
automotive & transportationfuel & efficiencympg calculator
automotive & transportationfuel & efficiencyfuel cost calculator
automotive & transportationfuel & efficiencytrip fuel calculator
automotive & transportationfuel & efficiencycommute cost calculator
automotive & transportationfuel & efficiencygas savings calculator
automotive & transportationfuel & efficiencyhybrid savings calculator
automotive & transportationfuel & efficiencyelectric vehicle savings calculator
automotive & transportationfuel & efficiencyfuel economy comparison calculator
automotive & transportationfuel & efficiencycarbon footprint calculator
automotive & transportationfuel & efficiencydiesel vs gas calculator
automotive & transportationfuel & efficiencyoctane calculator
automotive & transportationfuel & efficiencye85 vs regular calculator
automotive & transportationfuel & efficiencyfuel tank range calculator
automotive & transportationfuel & efficiencycost per mile calculator
About Fuel & Efficiency Calculators
Cut fuel costs with free efficiency calculators. Work out fuel cost per trip, MPG, fuel economy comparisons, gas savings, and diesel-, E85-, hybrid- and EV-versus-petrol scenarios.
Fuel is a major running cost, and small efficiency differences add up over a year. These tools compare vehicles, fuels, and commutes so you can choose the cheaper option.
Frequently Asked Questions
How do I calculate fuel cost?▼
Enter distance, fuel economy, and fuel price into the fuel cost calculator to get the trip cost and the cost per mile or kilometre.
How is MPG calculated?▼
MPG is miles driven divided by gallons used. The MPG calculator works it out from odometer and fill-up data in US or metric units.
Can I compare two fuels or vehicles?▼
Yes — the fuel economy comparison, diesel-vs-gas, E85-vs-regular, and hybrid/EV savings calculators compare options directly.