Truck Tire Cost Calculator

Both describe the economics of ONE tire across its full service life -- purchase price plus every retread, and the miles that same casing accumulates through New Tire Mileage and however many retreads it gets. Number of Tires and Annual Miles instead describe the FLEET's usage pattern, applied afterward when scaling Cost/Mile/Tire up to Tire Cost per Mile and Annual Tire Cost -- they simply don't enter the per-tire lifecycle math at all.

Cost/Mile/Tire is Lifecycle Cost/Tire divided by Lifecycle Miles/Tire, and New Tire Mileage feeds directly into that denominator (Lifecycle Miles/Tire) without changing the numerator (Lifecycle Cost/Tire) at all. A tire that lasts longer before its first retread spreads the same total lifecycle cost across more miles, so Cost/Mile/Tire falls even though nothing about the tire's price changed.

Yes -- Annual Retread Savings compares the retread strategy's Tire Cost per Mile against a hypothetical always-buy-new alternative at the same New Tire Price and New Tire Mileage. If Retread Price is high relative to New Tire Price, or Retread Mileage is short relative to New Tire Mileage, retreading can cost MORE per mile than simply replacing tires outright, and this calculator shows that as a genuinely negative Annual Retread Savings figure rather than flooring it at $0 -- a negative number here means your retread program is costing more per mile than buying new tires outright, and it's worth renegotiating Retread Price or reconsidering how many Retreads per Tire you're paying for.

Retreads Needed/Year multiplies Tires Needed/Year (the fleet's annual tire replacement rate, based on Annual Miles and Lifecycle Miles/Tire) by Retreads per Tire, as a rough estimate of how many retread services the fleet needs annually assuming a steady replacement cycle. Setting Retreads per Tire to 0 (never retreading) makes this figure 0, since there would be no retread services to perform at all.

Retread mileage and reliability typically degrade with each additional retread cycle, and safety regulations for steer tires in particular often restrict or discourage retreading altogether -- this calculator's Retread Mileage and Retreads per Tire inputs are cost assumptions you provide, not a safety or DOT-compliance check, so a fleet may deliberately retread fewer times than the cost-optimal figure this tool suggests for safety or regulatory reasons.