Exercise Water Loss Calculator – How Much Are You Losing?


Water is the most essential ingredient to a healthy life. Our bodies are made up of 65 percent water. Being dehydrated by even 2 percent can decrease performance by 10 percent. Hydration becomes more imperative when you are making up for the water lost in sweat from a good workout. Adequate fluid intake is essential to comfort, performance and safety. The longer and more intensely you exercise, the more important it is to drink the right kind of fluids.

Exercise Water Loss Calculator
Weight Before Exercise (No Clothing) pounds
Weight After Exercise (No Clothing)     pounds
Exercise Weight Loss :
Exercise Water Loss :
Body Weight Loss :
0% Normal heat regulation and performance
1% Thirst is noticed, thermoregulation during exercise is altered, performance degrades
2% Further decrease in thermoregulation, increased thirst, worsening performance
3% All factors negative increased, dry mouth thirst
4% Exercise performance cut by 25 to 40%
5% Headache, weakness, incoherent feeling, irritability, fatigue
6% Weakness, nausea, severe loss of thermoregulation
7% and above - Unhealthy and not suggested


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