Calculate your personal sweat rate, hourly fluid needs, and exact post-workout replacement volumes — engineered for peak performance.
Sweat rate uses the Cheuvront & Sawka (2017) corrected formula: SweatLoss = (ΔBody mass × 1000) + FluidIn − UrineLoss, blended with sport-specific baselines from Barnes et al. (2019) GSSI study of 1,303 athletes. Intensity and sport type interact to adjust both baseline and during-exercise targets. During-exercise target = 70–85% of sweat rate (Noakes 2012). Post-workout = fluid deficit × 1.5 (ACSM). Results are estimates — individual variation is high. Consult a sports dietitian for clinical advice.
Your numbers demand the right hydration formula. Ontoez Sportz Performance Electrolytes are engineered to match your sweat composition — sodium, potassium, magnesium, and fast-absorbing carbohydrates in every serve.