Convert Watt per Square Inch to Watt per Square Meter
Live bidirectional calculator for Watts per Square Inch (W/in²) and Watts per Square Meter (W/m²) with verified formula and conversion charts.
Heat Flux Density9 units
How the Calculation Works (Linear Scaling)
Since 1 Watt per Square Inch = 1550.0031 Watts per Square Meter, multiply the value in Watts per Square Inch by 1550.0031.
Watt per Square Inch to Watt per Square Meter Conversion Table
Precomputed values for quick reference and printing.
| Watt per Square Inch | Watt per Square Meter |
|---|---|
| 1 W/in² | 1550.0031 W/m² |
| 2 W/in² | 3100.0062 W/m² |
| 3 W/in² | 4650.0093 W/m² |
| 4 W/in² | 6200.0124 W/m² |
| 5 W/in² | 7750.0155 W/m² |
| 6 W/in² | 9300.0186 W/m² |
| 7 W/in² | 10850.0217 W/m² |
| 8 W/in² | 12400.0248 W/m² |
| 9 W/in² | 13950.0279 W/m² |
| 10 W/in² | 15500.031 W/m² |
| 15 W/in² | 23250.0465 W/m² |
| 20 W/in² | 31000.062 W/m² |
| 25 W/in² | 38750.0775 W/m² |
| 30 W/in² | 46500.093 W/m² |
| 40 W/in² | 62000.124 W/m² |
| 50 W/in² | 77500.155 W/m² |
| 75 W/in² | 116250.2325 W/m² |
| 100 W/in² | 155000.31 W/m² |
| Watt per Square Meter | Watt per Square Inch |
|---|---|
| 1 W/m² | 0.0006 W/in² |
| 2 W/m² | 0.0013 W/in² |
| 3 W/m² | 0.0019 W/in² |
| 4 W/m² | 0.0026 W/in² |
| 5 W/m² | 0.0032 W/in² |
| 6 W/m² | 0.0039 W/in² |
| 7 W/m² | 0.0045 W/in² |
| 8 W/m² | 0.0052 W/in² |
| 9 W/m² | 0.0058 W/in² |
| 10 W/m² | 0.0065 W/in² |
| 15 W/m² | 0.0097 W/in² |
| 20 W/m² | 0.0129 W/in² |
| 25 W/m² | 0.0161 W/in² |
| 30 W/m² | 0.0194 W/in² |
| 40 W/m² | 0.0258 W/in² |
| 50 W/m² | 0.0323 W/in² |
| 75 W/m² | 0.0484 W/in² |
| 100 W/m² | 0.0645 W/in² |
About Watt per Square Inch (W/in²)
Heat flux density equal to 1 watt per square inch (≈ 1,550.003 W/m²).
History: Used in US electronics cooling and electric immersion heater watt-density ratings.
Common Uses: Immersion heating element watt density, electric heater sheath ratings.
About Watt per Square Meter (W/m²)
The SI unit of heat flux density (q"), defined as 1 watt of thermal power transmitted through 1 square meter of surface area (1 W/m² = 1 J/(s·m²)).
History: Standardized in SI for radiative and convective heat flux density and irradiance (solar constant ≈ 1361 W/m²).
Common Uses: Solar irradiance measurements, building heat loss rate, industrial furnace radiant flux.
❓ Frequently Asked Questions
How many Watts per Square Meter are in 1 Watt per Square Inch?
There are exactly 1550.0031 Watts per Square Meter in 1 Watt per Square Inch (1 W/in² = 1550.0031 W/m²).
What is the formula to convert Watt per Square Inch to Watt per Square Meter?
The formula is: Watt per Square Meter = Watt per Square Inch × 1550.0031. Since 1 Watt per Square Inch = 1550.0031 Watts per Square Meter, multiply the value in Watts per Square Inch by 1550.0031.
How do I convert 1 W/in² to W/m² manually?
To convert 1 W/in² to W/m²: apply the formula Watt per Square Meter = Watt per Square Inch × 1550.0031. Substituting gives: 1 × 1550.0031 = 1550.0031 W/m².