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Pace = total time ÷ distance. Pace per mile = pace per km × 1.609344. Race projections multiply your pace by 5, 10, 21.0975 and 42.195 km.
Divide your total time by your distance. 5 km in 25:00 is 5:00 per km, or about 8:03 per mile.
Multiply the pace per km by 1.609344 to get pace per mile.
They assume you hold the same pace for the whole distance, which is optimistic for longer races.
No. Everything is calculated in your browser and nothing is sent anywhere.
Free tool, provided as is, with no guarantee. Projections assume a constant pace and are estimates only; not training or medical advice. Please do not enter personal information in feedback.