Calculate marathon pace or finish time over 42.2 km. Plan even marathon pacing with per-kilometre splits from your goal time.
Use the full Running Pace Calculator - Distance, Pace & Time to enter custom values.
Distance is fixed to the standard marathon distance (42.195 km). Enter your target finish time or desired pace to calculate the other value and see kilometre splits.
Popular goal times: 4 hour marathon, 4:30 marathon, sub-3 marathon, and 5 hour marathon.
Even marathon pacing is a strong starting point, but course profile matters — hilly routes and heat often need slower early kilometres. Compare marathon course profiles on Marathon Focus to see elevation and route detail before you lock in a goal.
Use the pace converter if your training plan lists mile splits but the race is marked in kilometres.
To estimate whether your goal is realistic, try the marathon race time predictor with a recent half marathon or 10K result.
Other tools that pair well with this calculator.
Free pace converter for runners. Convert min/km to min/mile, mile pace to km pace, and running speed in km/h or mph for treadmill and track workouts.
Free marathon time calculator and race predictor. Estimate 5K, 10K, half marathon, and marathon finish times from a recent race using Riegel's formula.
Convert running distances between kilometres and miles. Quickly switch 5K, 10K, half marathon, and marathon distances between metric and imperial.
