HIF LogicHIF Logic
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Free Running Pace Calculator 🏃

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Calculate…

5.0000 km · 3.1069 mi

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Fill in any two fields above to instantly calculate the third, plus a full mile split table.

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The HIF Logic Free Running Pace Calculator is a three-way solver computing Pace, Finish Time, or Distance from any two known running variables. Core formula: Pace = Time ÷ Distance, with unit conversions for min/mi to min/km and miles to kilometers. Preset race distances: 5K (3.107 mi), 10K (6.214 mi), Half Marathon (13.109 mi), Full Marathon (26.219 mi). Custom distance supports miles and kilometers. Time entry uses h:m:s format. Pace entry uses mm:ss per mile or per km. Output includes finish time, pace per mile, pace per km, and a scrollable mile-by-mile cumulative split table (up to 42 mile splits for marathons). All values update live on every keystroke. Keywords: running pace calculator, pace calculator, 5k pace chart, marathon split calculator, half marathon pace calculator, 10k pace calculator, run time calculator, mile per minute converter, race pace planner, running split table, how to calculate running pace, sub-30 5k pace, sub-4 hour marathon pace, min/mi to min/km converter, 5k pace per mile chart, what pace is a 30 minute 5k. Free, no account required, works on mobile and desktop.