Run the numbers before you run the miles.
Straight-up calculators for people who drive for a living. Your true cost per mile, what a load really pays, your IFTA bill, your hours, your take-home — worked out in seconds.
Owner-Operator Calculators
The money math every one-truck (or small-fleet) operation lives and dies by. Start here.
Cost Per Mile
Add up fixed, variable and your own pay to find what every mile truly costs you.
Open calculator → Take it or leave itLoad Profitability
Rate, miles and deadhead in — real profit per mile out. Know before you book.
Open calculator → Every quarterIFTA Fuel Tax
Miles and gallons by state, worked into what you owe (or get back) each quarter.
Open calculator → Empty miles costDeadhead Calculator
See what running empty does to your all-in rate and blended cost per mile.
Open calculator → Stay legalHours of Service
11-hour driving, 14-hour on-duty and 70-hour/8-day clocks, worked out for you.
Open calculator → Tax seasonTrucker Per Diem
Days on the road times the daily rate and deductible percentage — your write-off.
Open calculator →Truck Owner & Gearhead Tools
Running bigger tires or a re-gear? Get your speedometer, gearing and payload right — no dealer visit needed.
Tire Size Calculator
Compare old vs new tires: diameter change, speedometer error and effective gearing.
Open calculator → Re-gear rightGear Ratio Calculator
Find the axle ratio that restores your RPM and power after a tire-size change.
Open calculator → Load it safePayload Calculator
Work backward from GVWR and curb weight to your real usable payload.
Open calculator →No sign-up wall
Every calculator is free and open. No email required to get your number, ever. Bookmark it and go.
Built for the cab
Big buttons, big numbers, high contrast. Works on the laptop in the truck stop and the desktop at home.
Real operator math
The formulas dispatchers and accountants use — cost per mile, IFTA, deadhead — explained in plain English.
The Friday fuel-and-freight brief
Once a week: national diesel average, hot lanes, rate trends and one tax or compliance tip. Free. Made for people who own the truck.
You're on the list. Watch for the Friday brief.
TruckingCalc provides free educational tools and estimates. We are not accountants, tax advisors, or the DOT — verify anything that affects your taxes or compliance with a qualified professional. As an Amazon Associate we earn from qualifying purchases.