Mix hot and cold water to find the resulting temperature.
The final temperature is a volume-weighted average of the hot and cold water you mix together. Water above about 40 degrees can scald, so checking the mixed temperature avoids burns during bathing.
Bath Water Temperature Mix
Mixed temp = (hot x hot volume + cold x cold volume) / total volume
Mixed temp = (hot x hot volume + cold x cold volume) / total volume The final temperature is a volume-weighted average of the hot and cold water you mix together.
Water above about 40 degrees can scald, so checking the mixed temperature avoids burns during bathing.
This calculator takes 4 inputs: Hot water temp, Cold water temp, Hot water volume, Cold water volume. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.