How Much Do I Spend on Gas?

Multiply monthly miles by your cost per mile, or track every fill-up. Both paths start with honest inputs.

By Gas Tracker Editorial · Published 2026-01-18 · Updated 2026-03-01

Short answer

Monthly fuel spend ≈ (miles per month ÷ MPG) × price per gallon, or sum every fill-up receipt for the exact number.

Quick estimate

If you drive 1,200 miles/month at 27 MPG and pay $3.60/gal:

Gallons ≈ 1,200 ÷ 27 = 44.4 gal
Spend ≈ 44.4 × $3.60 ≈ $160/month

Use the Fuel Cost Calculator with your numbers.

The accurate way

Log each fill-up: date, total paid, gallons, and odometer when possible. Sum totals for the calendar month. Gas Tracker AI does this from scans or manual entry.

Commuting vs everything else

Split work commute miles from weekend driving if you want to see what the job costs in fuel — same math, smaller mile inputs.

Next step

Once you know the monthly number, calculate cost per mile to compare vehicles or trips.