Heat Flux Density Converter
Convert heat flux density measurements.
Popular Heat Flux Density Conversions
Complete List of Heat Flux Density Units for Conversion
1 Kilowatt per Square Meter [kW/m²] = 1000.00 Watt per Square Meter [W/m²]
Kilowatt per Square Meter to Watt per Square Meter, Watt per Square Meter to Kilowatt per Square Meter
1 BTU (IT) per Hour Square Foot [BTU(IT)/(h·ft²)] = 3.15459 Watt per Square Meter [W/m²]
BTU (IT) per Hour Square Foot to Watt per Square Meter, Watt per Square Meter to BTU (IT) per Hour Square Foot
1 BTU (th) per Hour Square Foot [BTU(th)/(h·ft²)] = 3.15248 Watt per Square Meter [W/m²]
BTU (th) per Hour Square Foot to Watt per Square Meter, Watt per Square Meter to BTU (th) per Hour Square Foot
1 BTU (IT) per Second Square Foot [BTU(IT)/(s·ft²)] = 11356.5 Watt per Square Meter [W/m²]
BTU (IT) per Second Square Foot to Watt per Square Meter, Watt per Square Meter to BTU (IT) per Second Square Foot
1 BTU (th) per Second Square Foot [BTU(th)/(s·ft²)] = 11348.9 Watt per Square Meter [W/m²]
BTU (th) per Second Square Foot to Watt per Square Meter, Watt per Square Meter to BTU (th) per Second Square Foot
1 BTU (th) per Second Square Inch [BTU(th)/(s·in²)] = 1.63425e+6 Watt per Square Meter [W/m²]
BTU (th) per Second Square Inch to Watt per Square Meter, Watt per Square Meter to BTU (th) per Second Square Inch
1 Calorie (th) per Minute Square Centimeter [cal(th)/(min·cm²)] = 697.333 Watt per Square Meter [W/m²]
Calorie (th) per Minute Square Centimeter to Watt per Square Meter, Watt per Square Meter to Calorie (th) per Minute Square Centimeter
1 Calorie (th) per Second Square Centimeter [cal(th)/(s·cm²)] = 41840.0 Watt per Square Meter [W/m²]
Calorie (th) per Second Square Centimeter to Watt per Square Meter, Watt per Square Meter to Calorie (th) per Second Square Centimeter
How this heat flux density converter works
Watt per Square Meter (W/m²) is used as the internal base unit. Every value you enter is first converted to Watt per Square Meter using exact SI factors, then translated to the requested unit with the same data pulled from the SI Brochure and NIST SP 811.
Key heat flux density relationships
- 1 Kilowatt per Square Meter = 1,000 Watt per Square Meter
- 1 BTU (IT) per Hour Square Foot = 3.15459 Watt per Square Meter
- 1 BTU (th) per Hour Square Foot = 3.15248 Watt per Square Meter
- 1 BTU (IT) per Second Square Foot = 11,356.5 Watt per Square Meter
- 1 BTU (th) per Second Square Foot = 11,348.9 Watt per Square Meter
Where heat flux density units are used
Thermal engineers, HVAC professionals, and chemists rely on accurate heat and thermodynamics conversions to balance energy budgets and ensure safe operating conditions. The heat flux density converter covers real-world units such as Watt per Square Meter and Kilowatt per Square Meter, giving teams a trusted reference when cross-checking data between labs, suppliers, and regulatory filings.
Tips for accurate heat flux density conversions
- Always verify the unit symbol in your worksheet—this converter normalizes values through Watt per Square Meter, which is the SI reference for heat flux density measurements.
- When jumping between Watt per Square Meter and Kilowatt per Square Meter, watch metric prefixes and rounding. A misplaced milli-, micro-, or kilo- prefix can produce errors of several orders of magnitude.
- Document the context (test conditions, instrument resolution, uncertainty) whenever you publish heat flux density conversions so coworkers and auditors can reproduce your results.