Paul's Law Rowing Calculator

Enter a known time

Result in Table

500m 1km 4min 1mile 2km 5km 6km 30min 10km 60min Halfmarathon Fullmarathon
Split: 00:02:00 00:02:05 00:02:05 00:02:08 00:02:10 00:02:16 00:02:17 00:02:19 00:02:21 00:02:24 00:02:26 00:02:31
Time: 00:02:00 00:04:10 00:04:00 00:06:53 00:08:40 00:22:46 00:27:35 00:30:00 00:47:12 01:00:00 01:43:22 03:33:46

Pace in Graph


What is Pauls's Law?

Paul's Law can help you identify if you need to work on speed or endurance. It is a rule saying that for a rowing athlete with balanced speed and endurance capabilities, every doubling of the distance should result in a five-second increase of the 500m split.

How to calculate Paul's Law?

All you need to calculate the "predictions" of Paul's Law is a known time or speed for any distance. The formula behind this calculation is:

p₂ = p₁ + 5 log₂(d₂/d₁)

p is the pace in seconds, d is the distance in meters.

How good is Paul's Law in rowing?

Paul's Law is quite controversial. Many people like it, and you can find lots of discussion about it in forums or on reddit. Some people hold against it that it is not very accurate, especially for long distances.

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