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Vehicle Cost-Per-Mile Calculator

Find the true cost of putting your truck or van on the road — fuel plus fixed and variable buckets — then a suggested per-mile billable rate and trip charge. No signup.

Driving

What you pay at the pump, per gallon. The default is the EIA US regular-gasoline average for the week ending 17 Aug 2026 — that series moves weekly, so re-pull yours.

Your real-world MPG — a loaded service van is often 14–20, not the window sticker.

Typical 12,000–15,000 mi/yr; this is the divisor for every fixed cost.

Annual costs

Variable — rises with miles driven.

Fixed.

Fixed. Enter 0 if owned outright.

Roughly (what you paid − resale) ÷ years owned. Leave the default if unsure.

Fixed.

Show billing options

Off = you drive (owner). On = add a per-mile driver wage as a variable cost.

Markup is added on your cost; 30% on a $0.58/mi cost ≈ $0.75/mi billable.

Round-trip miles for one job, to preview the travel charge.

Total cost per mile

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True cost to put this vehicle on the road.

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How this is calculated

Every cost is turned into $ per mile and added up. Fuel is fuel price ÷ MPG. Each annual cost (maintenance, insurance, payment, depreciation, registration) is divided by your annual miles. Costs are grouped variable (fuel, maintenance, driver pay — they rise with miles) versus fixed (insurance, payment, depreciation, registration — incurred whether you drive or not). 

fuel / mi      = fuel price / MPG
bucket / mi    = annual cost / annual miles
variable / mi  = fuel + maintenance + driver pay
fixed / mi     = insurance + payment + depreciation + registration
cost / mi      = variable + fixed
cost / 100 mi  = cost / mi × 100
annual cost    = cost / mi × annual miles
billable / mi  = cost / mi × (1 + markup%)
trip charge    = billable / mi × round-trip miles

The suggested billable rate uses markup on cost (cost × (1 + markup)), not the margin formula cost / (1 − margin). The IRS business standard mileage rate for July 1 – December 31, 2026 (76¢/mi; the rate for the first half of the year was 72.5¢) is shown as a sanity-check benchmark only. It is not a figure this tool computes for you, and the printout is a planning worksheet, not a mileage log.

For the record the IRS does expect, the mileage log template is the printable version of the same journeys. What those miles should be billed at on a single visit is the trip charge and service call calculator, and when fuel moves enough to reprice a whole route, a fuel surcharge is the usual instrument, sized in the fuel surcharge calculator.

The cheapest mile is the one you do not drive, which is why the route density and stops per day calculator treats drive time as the dominant lever on a day's capacity.

Sources

  1. Operating Cost Per Mile Calculator — full-ownership annualize-then-divide method, % breakdown, cost-per-100-miles. CarsCounsel. Retrieved .
  2. Income Estimation Tool — fixed vs variable cost modeling and profit-per-mile framing. Rigbooks. Retrieved .
  3. Standard mileage rates. Internal Revenue Service. Retrieved .
  4. Gasoline and Diesel Fuel Update — weekly US retail averages, all taxes included (source of the default fuel price). U.S. Energy Information Administration. Retrieved .

How we choose and check our formulas

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Fieldwynn is the field-first app we are building for small crews — simple in the truck, powerful in the back office. It is not out yet; join the early-access list and be first when it launches for your trade.