Weigh-In Data
Use your next workout to collect this data
lbs
lbs
oz
min
Enter your weigh-in data
Weigh yourself before and after a typical workout to see your personalized sweat rate and hydration targets.
sweat-rate calculations
Practical examples
Pre/post weigh-in and replacement-plan examples that stay tied to real sweat-loss math, bottle counts, and hot-session adjustments.
One-bottle-per-hour replacement plan
A practical calculator example when the result needs to translate into a simple bottle target the athlete can remember.
Fluid targetBottle planHydration
Water + electrolyte baseline
Simple daily starting point before chasing fancy hydration hacks.
BaselineElectrolytes
Meet-day cooler built from sweat loss
A practical meet example for athletes who need the calculator result turned into a bag or cooler setup.
Meet dayCoolerHydration