Sports · 11 calculators

Running Calculators

Running pace, speed, finish time, race pace for 5K, 10K, half and full marathon, race predictions and splits.

Running
Running Pace Calculator
Running pace per km or mile from distance and time, with speed and split times for common races.
Pace = time ÷ distance
Also called pace calculator · min per km
Running Speed Running Time Marathon Pace
Running
Running Speed Calculator
Running speed in km/h or mph from distance and time, with the equivalent pace per km and per mile.
Pace = time ÷ distance
Also called running speed · how fast am i running
Running Pace Average Speed Running Time
Running
Running Time Calculator
Predicted finish time for any distance from your target pace — with the pace and speed shown.
Pace = time ÷ distance
Also called finish time calculator · race time from pace
Running Pace Race Time Predictor Running Distance
Running
Running Distance Calculator
How far you ran from your time and pace — useful when your watch loses GPS.
Pace = time ÷ distance
Also called distance from pace · how far did i run
Running Pace Running Time 5K Pace
Running
5K Pace Calculator
Pace per kilometre and mile for a target 5K time, with 1 km, 5 km and half-way splits.
Pace = target time ÷ race distance
Also called 5k pace · 5k time
Running Pace Race Time Predictor Split Time
Running
10K Pace Calculator
Pace per kilometre and mile for a target 10K time, with 1 km, 5 km and half-way splits.
Pace = target time ÷ race distance
Also called 10k pace · 10k time
Running Pace Race Time Predictor Split Time
Running
Half Marathon Pace Calculator
Pace per kilometre and mile for a target Half Marathon time, with 1 km, 5 km and half-way splits.
Pace = target time ÷ race distance
Also called half marathon pace · half marathon time
Running Pace Race Time Predictor Split Time
Running
Marathon Pace Calculator
Pace per kilometre and mile for a target Marathon time, with 1 km, 5 km and half-way splits.
Pace = target time ÷ race distance
Also called marathon pace · marathon time
Running Pace Race Time Predictor Split Time
Running
Race Time Predictor
Predict finish times at other distances from one recent race, using Riegel’s formula.
T₂ = T₁ × (D₂ / D₁)^1.06
Also called race predictor · riegel formula
Running Pace Marathon Pace Split Time
Running
Split Time Calculator
Even, negative or positive splits for a race, with the target time for each segment.
Even split = total time ÷ splits; negativ…
Also called negative split calculator · race splits
Running Pace Marathon Pace Running Calories
Running
Running Calories Calculator
Calories burned running from distance, body weight and pace, including the net (above resting) burn.
≈ 1.036 kcal per kg per km (gross)
Also called calories burned running · run calorie calculator
Calories Burned Walking Calories Calorie Deficit

Key running formulas

Running Pace	Pace = time ÷ distance · Speed = distance ÷ time
Running Speed	Pace = time ÷ distance · Speed = distance ÷ time
Running Time	Pace = time ÷ distance · Speed = distance ÷ time
Running Distance	Pace = time ÷ distance · Speed = distance ÷ time
5K Pace	Pace = target time ÷ race distance
10K Pace	Pace = target time ÷ race distance
Half Marathon Pace	Pace = target time ÷ race distance
Marathon Pace	Pace = target time ÷ race distance
Race Time Predictor	T₂ = T₁ × (D₂ / D₁)^1.06
Split Time	Even split = total time ÷ splits; negative splits get faster