Purpose
The running pace calculator helps you convert pace and finish time across common training and race scenarios, and provides split-time guidance for 5K, 10K, half marathon, and marathon pacing plans.
Steps
- Choose a mode: pace to time, time to pace, or split pace.
- Enter distance and unit, or use preset distances.
- Fill in pace, finish time, or split time based on the selected mode, then calculate.
- Review finish time, average pace, speed, calorie estimate, and split times.
Calculation Logic
- Pace to time: total time = distance / pace-unit distance x pace seconds.
- Time to pace: average pace = total time / distance.
- Split pace: derive pace per kilometer from split data, then estimate total time.
- Calories are estimated with a simple baseline of about 60 kcal per kilometer.
Typical Use Cases
- Pre-race pacing and finish-time planning.
- Daily training rhythm control and split review.
- Coach and team communication for pace planning.
Notes
- Results are estimates; terrain, weather, fueling, and condition can change actual outcomes.
- For long runs, combine pace with heart-rate, power, or effort metrics.
- All calculations run locally in your browser and no input is uploaded.