Physics and energy systems · Irradiance conversions

Watts per square meter to British thermal units per hour-square foot converter

Convert a value from watts per square meter (W/m²) to British thermal units per hour-square foot (Btu/(h·ft²)) using the NIST SI conversion convention.

Published · R0

Method and scope

value(Btu/(h·ft²)) = convertValue(value(W/m²), W/m², Btu/(h·ft²)).

Use watts per square meter to british thermal units per hour-square foot converter for educational calculation or a clearly scoped arithmetic estimate. Intended for Education, reference, and general measurement conversion.

Inputs
  • Value in watts per square meter — W/m²
SOURCE AND LIMITS

Assumptions: The entered quantity is already expressed in the selected source unit. The conversion preserves the physical quantity and uses the stated source and target units.

Limitations: Unit conversion does not add measurement precision or uncertainty.

Method version 1.0.0 · Unit registry and result provenance are shown after calculation. This tool is limited to the documented scope.
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