Conversions
Heat Flux Converter
Use the heat flux converter for radiation, conduction, solar-energy examples, and heat-transfer rate per area.
Converted value
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- Value in W/m^2
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- Conversion rate
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Student quick launch
Grade planning, algebra checks, and formulas students reach for most.
Study path
Use this calculator with
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What the heat flux converter solves
Use the heat flux converter for radiation, conduction, solar-energy examples, and heat-transfer rate per area.
Formula
How to use it
- Enter the value to convert.
- Choose the source unit and target unit.
- Use the shown conversion rate to check the direction.
How to read the answer
The converted value uses W/m^2 as the shared bridge unit so every pair in this unit family stays consistent.
Common mistakes and edge cases
- Heat flux is rate per area, not total heat transfer.
- Confirm whether the source uses square feet, square inches, or square centimeters.
- Radiation problems may also need emissivity, view factor, or temperature assumptions.
Worked examples
Default conversion
Converted value
315.459075 W/m^2
Reverse direction
Converted value
31.699833 BTU/(h ft^2)
Frequently asked questions
What formula does the heat flux converter use?+
It converts the source value into a base unit, then divides by the target unit factor.
Why is the conversion rate shown?+
The rate makes it easier to verify that the calculator used the direction you intended.
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Last updated: May 15, 2026