How Much Water Should an 80 kg Person Drink During a 1-Hour Workout?
Calculate the recommended hourly water intake for an 80 kg person during a standard 1-hour gym workout.
How to use this tool
- Enter body weight, hours of activity and temperature in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your target per hour and the full breakdown beneath it.
Find out how much water you should drink during a 1-hour workout if you weigh 80 kg.
Frequently asked questions
- Does temperature affect hydration needs?
- Yes — for every 5 °C above 20 °C this calculator adds 10% to the base requirement to account for sweat losses.
- Should I drink all at once or spread it out?
- Spread intake evenly throughout the day. Drinking too much at once can dilute blood sodium (hyponatremia) in extreme cases.