See what a trip costs in gas — from the distance, your vehicle's MPG, and the price per gallon.
Real fuel use varies with speed, load, terrain, and driving style. City vs. highway MPG differ. Estimate only.
Divide the distance by your MPG to get gallons, then multiply by the price per gallon. Cost per mile is handy for comparing vehicles or claiming business travel.
Fuel cost = (distance ÷ MPG) × price per gallon
Use highway MPG for road trips and city MPG for local driving — or a blended figure for mixed trips.
Business mileage is often deductible at a standard rate that already includes fuel and wear — the mileage deduction calculator handles that.
Related: gas mileage calculator · mileage deduction calculator · car affordability calculator · all free calculators.
Yes. The Fuel Cost Calculator is completely free, runs in your browser, and never asks for a signup, email, or download. Enter your numbers and the result updates instantly.
It uses standard formulas and recalculates the moment you change a value, so the math is exact for the inputs you enter. Treat the result as a reliable planning estimate; for decisions with legal or tax consequences, confirm the figures with a qualified professional.
Yes. The calculator is mobile-friendly and works on any phone, tablet, or computer — there is no app to install and nothing to save.
Yes. Scroll to “Add this free calculator to your site” above and copy the embed snippet to place the live calculator on your blog or website for free.
Last reviewed: September 2026. Free to use, no signup — Fuel Cost Calculator by ToolWise Digital.
Copy the snippet to embed the live calculator on your blog or website — free for any site. The small “Calculator by ToolWise Digital” credit line keeps it free; you're welcome to remove it, but we appreciate you leaving it.
Ready-made Google Sheets & Excel trackers for money, taxes, and small business — each with a free phone version.
Browse the shop →Subscribe and we'll email you our Simple Monthly Budget (Google Sheets & Excel, plus a phone version) — free. Then the occasional short note on pricing, bookkeeping, and the money side of a small business. No spam — unsubscribe anytime.