Calculator tool
Enter your distance and time to calculate your pace. The calculator also projects your estimated finish times for common race distances assuming you maintain the same pace throughout. Use this to plan race strategy and set training targets.
Review the inputs carefully and treat the output as an estimate. For decisions involving money, taxes, health, law, or security, compare the result with trusted professional guidance when needed.
What is running pace?
Running pace is the time it takes to cover one kilometer or one mile. A faster pace means a lower number (e.g., 4:00/km is faster than 5:30/km).
Can I maintain the same pace for a marathon?
Most runners slow down over longer distances. These estimates assume constant pace and are best used as a planning baseline.
How do I convert km pace to mile pace?
Multiply your km pace by 1.60934. For example, 5:00/km equals approximately 8:03/mile.
Calories Burned Calculator
Estimate calories burned during exercise using MET values for walking, running, cycling, swimming, and more.
Open toolCalorie Calculator
Calculate your daily calorie needs using the Mifflin-St Jeor formula based on age, gender, height, weight, and activity.
Open toolArmy Body Fat Calculator
Calculate body fat percentage using the US Army method and check against Army fitness standards by age group.
Open tool