Free tools

Running calculators, free and sign-up free

Quick, accurate tools for planning your training and racing. Built by the team behind Trackside Training — the AI coach that turns the data you're already collecting into the training you actually need.

Race time predictor

Enter one recent race and project your 5K, 10K, half marathon, and marathon times and paces.

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Running pace calculator

Convert time to pace or pace to time for any distance, with an even-split table in miles or kilometers.

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More than a calculator.

Trackside Training is an AI running coach for the watch you already own. Ask it about your own training, free. Premium builds your race plan and rebuilds it every two weeks from what you actually ran. Connect once. Your coach reads each run from your next sync. Free to start.

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