Fleet Tire Cost-Per-Mile Calculator

Fleet Tire Inputs

Enter costs per tire or casing. Use one record for each axle, tire position, casing program, or fleet segment you want to compare.

CPM formula used: (new casing cost + sum of retread costs + service/repair costs - casing trade-in credit) / total miles achieved over the casing life.

Please review these inputs

Forecast notes

Fleet CPM

Fleet Cost Per 32nd

Based on entered wear rates.

Net Tire Cost

Next Pull Forecast

Per-Position Results

Position	Tires	Net Cost / Tire	CPM	Cost / 32nd	Miles to Pull	Pull Odometer	Replacement Forecast
Enter valid inputs to calculate results.

Input Basis

Position	Casing	Retreads	Service	Credit	Miles	Current Tread	Legal / Pull Limit	Wear Rate
Input summary will appear after calculation.

Self-Tests

Runs golden tests against the CPM, cost-per-32nd, wear projection, and fleet rollup calculation functions.

Self-tests not run.

About the Fleet Tire Cost-Per-Mile Calculator

Fleet managers, maintenance planners, and owner-operators use a fleet tire cost per mile calculation to combine casing cost, retread cost, service charges, credits, and miles into one operating metric. The worksheet helps compare tire programs, forecast replacements, and separate true lifecycle cost from the purchase price of a single tire.

How it works

Enter the original casing cost and any mounting or service costs.

Add retread costs, repair costs, and casing credits if applicable.

Enter total miles achieved across the tire lifecycle.

Review cost per mile for the tire, axle position, or vehicle group.

Use replacement-mile assumptions to forecast future tire spend.

Frequently asked questions

What costs belong in fleet tire cost per mile?

Include casing purchase, retreads, repairs, mounting, balancing, emergency service, and disposal where they are tracked. Subtract casing credits or resale value if your fleet recognizes them.

Why include retreads in the calculation?

Retreads extend casing life and can materially lower lifecycle cost per mile. Looking only at the original tire price can make two tire programs look misleadingly similar.

Should steer, drive, and trailer tires be compared together?

Usually no. Tire position affects wear rate, removal reasons, retreadability, and service risk. Compare cost per mile by position or duty cycle for better decisions.

How do casing credits affect tire cost per mile?

A casing credit reduces the net lifecycle cost if the casing can be sold, retreaded, or credited by a vendor. Use only credits your fleet can reasonably document.