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Find your target pace and estimated speed for a 3K race, time trial, or interval session.
Use this 3K pace calculator to turn a target finish time into pace per kilometer, compare efforts across sessions, and prepare race-day pacing over 3 kilometers. The calculator is designed to give a fast answer, but the quality of the answer still depends on accurate inputs and a clear idea of what decision you are trying to support.
- Enter Distance, Hours, and Minutes using the same units you plan to compare or report.
- Add Seconds and review the inputs before calculating.
- Read the main 3k pace first, then use the supporting outputs to understand the trade-offs behind that result.
- Compare your numbers with the worked examples below if you want a quick reasonableness check.
The displayed pace gives you a practical training number per kilometer and per mile, while average speed offers a broader intensity view. On this page, the primary output is 3k pace.
Scenario 1: 12 minute 3K goal. Inputs used: distance: 3, unitSystem: metric, hours: 0, minutes: 12, seconds: 0. Example result: 4:00 /km. A 12:00 target over 3K means holding about 4:00 /km throughout the race. Scenario 2: 14 minute 30 second effort. Inputs used: distance: 3, unitSystem: metric, hours: 0, minutes: 14, seconds: 30. Example result: 4:50 /km. At 14:30 for 3K, the average pace is roughly 4:50 /km, which helps structure repeats and split targets.
Core formula: pace = total time / distance; speed = distance / total hours. The calculator converts your full session time into average pace per kilometer and per mile, then derives average speed in kilometers per hour.
- This is average pace across the whole activity, not split-by-split pacing.
- Short pauses inside the total time will slow the displayed pace unless you remove them first.
Use this calculator after a workout or race when you want to understand the average pace implied by your distance and finish time. Related paths for follow-up analysis include pace calculator, 5k pace calculator, and 8k pace calculator.
Most bad outputs come from a few repeated input errors or interpretation mistakes. Use this short checklist before relying on the result.
- Including stop time when you actually want moving pace.
- Mixing miles and kilometers without checking the distance input carefully.
- Comparing pace across routes with very different elevation or terrain demands.
