Shoe Mileage Tracker Calculator

Total Mileage is a direct pass-through of Current Shoe Mileage — nothing else you enter changes it. Remaining Mileage subtracts that from Shoe Max Lifespan and floors at zero, so once you've logged more miles than the lifespan you set, it simply reads zero rather than going negative. Shoe Status is a five-tier label (Like New, Good, Monitor Closely, Replace Soon, Replace Now) driven entirely by what percentage of the max lifespan has been used — 50%, 70%, 85%, and 100% are the breakpoints. Weeks Until Replacement divides Remaining Mileage by Weekly Mileage, so it is a forward-looking projection based on your stated typical pace, not your actual logged history.

Actual Avg Weekly Mileage takes a different approach: it divides Current Shoe Mileage by Weeks Since Purchase, giving you a real average from what you've actually run in these shoes so far, which can diverge from your stated Weekly Mileage if your training has been inconsistent. Projected Total Shoe Life then uses that real average, not the stated one, to estimate how many weeks the shoes will ultimately last at your demonstrated pace. This calculator has no way to account for shoe type, running surface, runner weight, or gait — the 300-500 mile lifespan range in its own description is a general guideline you set yourself via Shoe Max Lifespan, not something the calculator derives.