Running
All running calculators
Running
Pace Calculator
Pace, finish time or distance from the other two.
10 km in 50:00 = 5:00 /km
Running
Race Time Predictor
Predicted times for other distances from one race.
10K 50:00 → half 1:50:19
Running
Race Split Calculator
Even or negative splits with elapsed times for each marker.
Marathon 4:00:00 → 5:41 /km
Running
VO2 Max Calculator
Fitness estimate from a race, plus equivalent race times.
5K in 25:00 → 38.3
Running
Heart Rate Zone Calculator
Five training zones from age or your own max.
Age 35 → max 184 bpm
Running
Treadmill Pace Converter
Belt speed to pace, and what an incline is worth.
10 km/h = 6:00 /km
Running
Running Calories Calculator
Energy used on a run, total and above resting.
70 kg, 10 km in 1:00:00 = 774 kcal
Strength
All strength calculators
Strength
One Rep Max Calculator
Estimated max from any set, plus training percentages.
100 kg × 5 = 115.5 kg
Strength
Barbell Plate Calculator
Which plates go on each side for any weight.
100 kg = 25 + 15 each side
Strength
DOTS, Wilks and IPF GL Calculator
DOTS, IPF GL, Wilks and Wilks 2020 in one place.
83 kg, 600 kg total = 405.05 DOTS
Strength
RPE Calculator
Weights for sets planned by effort, plus the RPE chart.
100 kg × 5 @8 → 3 @9 = 110 kg
Cricket
All cricket calculators
Cricket
Net Run Rate Calculator
Tournament NRR, with the all-out rule built in.
1016/238.2 v 851/250 = +0.859
Cricket
NRR Qualification Calculator
The winning margin needed to overtake on NRR.
Bat first 180 → restrict to 144
Cricket
Required Run Rate Calculator
Runs per over needed in a chase, over by over.
Need 94 off 54 = 10.44 an over
Cricket
Projected Score Calculator
Final total at the current rate and others.
86 after 9.3 overs → 181
Cricket
Batting Average and Strike Rate Calculator
Average, strike rate and boundary share.
965 runs, 20 outs = 48.25
Cricket
Bowling Economy Calculator
Economy, average, strike rate and dot balls.
286 off 38.4 overs = 7.40
Cricket
Overs to Balls Converter
Overs, balls and decimals, and adding spells.
18.4 overs = 112 balls
How these calculators work
The formula is on the page
Every tool prints the equation it uses and a worked example, so you can check the math yourself.
Sources you can check
Methods come from published research and governing body rules, and each page links to them.
Your numbers stay with you
Calculations run in your browser. Nothing you type is sent to us or stored on a server.
Share a result
Copy a link that reopens the calculator with your numbers filled in, handy for training partners and group chats.