Radiator BTU Calculator
Estimate room heat requirement in BTU using room dimensions and a simple heat-load factor.
Radiator BTU for a 3m by 2.4m room at 2.7m high
For a room measuring 3 metres by 2.4 metres with a height of 2.7 metres, this estimate gives the required radiator BTU output using the default heat factor below.
- Room volume19.44 m³
- Heat factor153 BTU/m³
- Required output2,975 BTU
Results - Radiator BTU Calculator
- Room volume19.44 m³
- Heat factor153 BTU/m³
- Required output2,975 BTU
BTU estimate notes
This is a quick sizing guide based on room volume and a standard domestic heat factor. It is useful for early-stage product selection, not final heating design.
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