Water Heating Energy
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Water Heating Energy
Estimate sensible heating energy using 1 kg/L water and 4184 J/(kg·K).
UNDERSTAND YOUR RESULT
How it works
Estimate sensible heating energy using 1 kg/L water and 4184 J/(kg·K).
THE CALCULATIONinput kWh = litres × 4184 × temperature rise / (3,600,000 × efficiency)
Using this calculator
Enter water volume (l), temperature increase (°c), heater efficiency (%). input kWh = litres × 4184 × temperature rise / (3,600,000 × efficiency).
What to keep in mind
A quantity estimate using your measurements, not a structural design, building-code check or purchasing specification. Allow for real shapes, cutting and the product instructions.
Frequently asked questions
Are my entries saved?
No. Calculator inputs remain in the current page and are cleared when you reload or leave. The tools do not upload your entries.
Why are results rounded?
The display is rounded for readability. Calculations use unrounded intermediate values. An estimate should not be interpreted as an exact measurement.