Category
Body tools
Run pace, sleep cycles, heart rate zones — calculators for the body parts you can actually train.
In the kitchen
Body tools are queued up. We launch one category at a time so each one ships with care, not as a placeholder dump.
Email us to suggest the first body tool we should build.
About these tools
Body & wellness tools land here in 2027. Running pace calculators with split breakdowns and finish-time predictors. Sleep cycle calculators that respect actual REM science (90-minute cycles are an approximation, not gospel). Heart rate zone calculators that don't pretend to be medical advice.
Coming next
- Running pace calculator (5K / 10K / half / marathon)
- Marathon finish time predictor (from a recent race)
- Heart rate zone calculator (max HR, lactate threshold)
- Sleep cycle calculator (90-min approximation, with caveats)
- Water intake calculator (daily target by weight + activity)