15 FOCUSED TOOLS
Pace, splits & race time calculators
Translate distances and times into comparable pace targets.
Choose the right calculation
Use matching distance units and decimal minutes. A constant-pace plan does not forecast how terrain, conditions or fatigue will affect a race. A split is a time over a chosen reference distance.
Find a tool for your question
Running Pace Calculator
Calculate average running pace from distance and elapsed minutes.
Race Time Calculator
Estimate completion time at a chosen constant pace.
Running Speed Calculator
Convert a kilometre pace to average speed.
Cycling Cadence Speed Calculator
Estimate bicycle speed from cadence, gear ratio and wheel circumference.
Swimming Pace Calculator
Calculate average swim time per 100 metres.
Lap Count Calculator
Find the number of laps needed to reach a target distance.
Race Split Calculator
Find target time per equal-distance split at a constant pace.
Walking Time Calculator
Estimate walking time for a chosen distance and average speed.
Rowing Split Calculator
Calculate average rowing time per 500 metres from total time and distance.
Track Lap Split Calculator
Find target time per lap from goal duration and race distance.
Riegel Race Time Predictor
Estimate a different-distance race time with an explicit endurance-scaling exponent.
Running Step Length Calculator
Relate average running speed and cadence to step length.
Bicycle Gear Inches Calculator
Compare bicycle gearing through effective wheel-diameter gearing units.
Bicycle Gear Development Calculator
Find distance travelled per complete crank revolution for a bicycle gear.
Route Climbing Density Calculator
Summarise how much total climbing is present per kilometre of a route.
How do I read a result of 5.5 minutes per kilometre?
It means 5 minutes 30 seconds per kilometre, because 0.5 of a minute is 30 seconds.
Useful next steps in other categories
Journey Time Calculator
Estimate moving time from distance and average speed.
Minutes to Hours Converter
Convert minutes to hours with an explicit conversion factor.