## Home

Did you ever want to convert mile pace to km pace? Or calculate your mile or kilometre pace for yasso's? Or perhaps calculate percentages of pace? You've come to the right place! Here you can perform all kinds of running calculations here.

New features and calculators are announced and explained in the blog, so be sure to check it out.

Happy running!
Alex

## Mile-kilometre pace

Do you ever read about mile pace wanting to know the corresponding kilometre pace, or the other way around? You can use this section to convert pace.

Calculation

Input

Output

05:00

minutes per kilometre

## Pace percentage

Do you ever want to run at a percentage of your goal or race pace, such as running at 80% of 5 minutes per kilometre or mile? You can use this section to calculate the percentage of a pace.

Calculation

Input

Output

05:00

minutes per kilometre/mile

## Time and distance to pace

Here, you can calculate pace based on a total time and distance, either in mile or kilometer pace.

Calculation

Input

Output

05:00

minutes per kilometre/mile

## Pace to speed

Here, you can convert pace (time per kilometre or mile) to speed (kilometre or mile per hour).

Calculation

Input

Output

12

kilometres per hour

## Pace to lap time

Here, you can convert pace (time per kilometre or mile) to lap time (400m).

Calculation

Input

Output

120

seconds per lap (400m)

## Yasso

A 'yasso' is a 800m interval which you run in the time of your marathon, in terms of minutes and seconds. For instance, a runner aiming at a marathon in 3 hours and 30 minutes should run a yasso in 3 minutes and 30 seconds. While you can clock these times easily on a track, I find it handy to use kilometer or mile pace, which spans 1000 or 1609 meters. You can calculate this yasso pace here.

Calculation

Input

Output

01:45

Half a yasso (400m)

03:30

Yasso (800m)

04:22

Yasso pace (kilometre)

07:02

Yasso pace (mile)

## VO2max

VO2max is the maximum rate of oxygen consumption measured during incremental exercise. It is a general measurement of fitness. You can estimate it here. See the reference tables at machars.net to interpret your own VO2max value. A lab test is the most reliable way of measuring your VO2max, but it is expensive. This calculator uses Jack Daniels's formula.

Calculation

Input

Output

32.28

VO2max

## Training paces

This training paces calculator is based on percentages, using the multiplication method (see Pace percentage). Please use the numbers as indications, not as scientifically informed predictions. (So do what feels good, not what a calculator tells you!).

Calculation

Input

Output

Training typePacePercentage
Long run pace06:40-07:4265%-75%
Easy run pace06:40-06:1575%-85%
Tempo run pace05:16-05:0095%-100%
Yasso pace04:38108%
VO2max pace04:33110%
Speed form pace04:21115%

pace in minutes per kilometre

## Riegel predictor

This prediction calculator is based on Peter Riegel's (1977) article for Runner's World. He proposed a formula for comparing relative performances at different distances. The formula is predicted time = given time * (new distance/original distance)1.06.

Calculation

Input

Output

2:12:23

on a half marathon

## Cameron predictor

This prediction calculator is based on David Cameron's (1998) formula published for Statistical Services of A. C. Nielsen Co.. He used a number of times of world-level athletes from 400M to 50 Miles in a non-linear regression model to predict race times. I'll present the formula below.

predicted time = (timein/distancein)*distanceout*((13.49681-0.000030363*distancein+ 835.7114/distancein*0.7905)/(13.49681-0.000030363*distanceout+835.7114/distanceout*0.7905).

Luckily, you can just select your own time at a certain distance and predict your time for another distance without any statistical knowledge.

Calculation

Input

Output

2:12:23

on a half marathon