ZapToolsFuel Cost Calculator
Estimate exactly what any trip will cost in fuel.
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Plan cheaper trips
Fuel cost = (distance ÷ MPG) × price per gallon. Small MPG improvements save more than you'd think on long trips — and steady highway speeds beat aggressive driving every time.
Frequently Asked Questions
What is good fuel economy in 2026?
30+ MPG is solid for gas cars; hybrids reach 50+; EVs use MPGe instead.
How do I convert MPG to L/100km?
L/100km = 235.214 ÷ MPG. Lower L/100km is better.
Does AC really use that much fuel?
AC can cut economy 5–25% in stop-and-go traffic; at highway speeds its effect is smaller than open windows' drag.