This chart shows Stroke Length x Tempo Combinations to create Pace for 100 meters. This chart is intended for open-water (no walls, no flip-turns or interruptions to the stroke), therefore
Pace = (100m/SL) x Tempo
To convert your pool SPL into universal Stroke Length number:
Pool Length – Glide Distance = Swim Distance
Swim Distance / SPL = SL
Maria swims in a 25 meter pool. She glides 5 meters from the wall to begin her first stroke #0. She has an average SPL of 19.
25m – 5m = 20m Swim Distance
20m / 19 SPL = 1.05 meters per stroke.