Kilojoule per square meter to BTU per square foot Converter
1 kilojoule per square meter is about 0.08805509184 BTUs per square foot. Convert kilojoules per square meter (kJ/m²) to BTUs per square foot (BTU/ft²) below: type a value and the result updates as you type.
kJ/m² to BTU/ft² calculator
Result
Kilojoule per square meter to BTU per square foot conversion
1 kJ/m² ≈ 0.08805509184 BTU/ft²one kilojoule per square meter in BTUs per square foot
1 BTU/ft² ≈ 11.35652668 kJ/m²one BTU per square foot in kilojoules per square meter
Kilojoule per square meter (kJ/m²): Exactly 1000 J/m².
BTU per square foot (BTU/ft²): One BTU (IT) per square foot.
Source:Kilojoule per square meter: SI Brochure, 9th edition (BIPM, 2019); BTU per square foot: NIST Special Publication 811 (2008), Appendix B.8
How to convert kilojoules per square meter to BTUs per square foot
To convert kilojoules per square meter to BTUs per square foot, multiply the number of kilojoules per square meter by about 0.08805509184.
Formula
BTU/ft² = kJ/m² × 0.08805509184
The factor is rounded here. The calculator uses the exact value.
Examples
- 5 kJ/m² = 5 × 0.08805509184 ≈ 0.4402754592 BTU/ft²
- 25 kJ/m² = 25 × 0.08805509184 ≈ 2.201377296 BTU/ft²
- 100 kJ/m² = 100 × 0.08805509184 ≈ 8.805509184 BTU/ft²
Kilojoule per square meter to BTU per square foot conversion table
| Kilojoule per square meter (kJ/m²) | BTU per square foot (BTU/ft²) |
|---|---|
| 0.1 kJ/m² | 0.008805509184 BTU/ft² |
| 0.5 kJ/m² | 0.04402754592 BTU/ft² |
| 1 kJ/m² | 0.08805509184 BTU/ft² |
| 2 kJ/m² | 0.1761101837 BTU/ft² |
| 3 kJ/m² | 0.2641652755 BTU/ft² |
| 5 kJ/m² | 0.4402754592 BTU/ft² |
| 10 kJ/m² | 0.8805509184 BTU/ft² |
| 20 kJ/m² | 1.761101837 BTU/ft² |
| 25 kJ/m² | 2.201377296 BTU/ft² |
| 50 kJ/m² | 4.402754592 BTU/ft² |
| 100 kJ/m² | 8.805509184 BTU/ft² |
| 250 kJ/m² | 22.01377296 BTU/ft² |
| 500 kJ/m² | 44.02754592 BTU/ft² |
| 1000 kJ/m² | 88.05509184 BTU/ft² |
Values rounded to 10 significant digits where needed.
Frequently asked questions
- How many BTUs per square foot are in one kilojoule per square meter?
- One kilojoule per square meter is about 0.08805509184 BTUs per square foot.
- How do I convert BTUs per square foot to kilojoules per square meter?
- To convert BTUs per square foot to kilojoules per square meter, multiply the number of BTUs per square foot by about 11.35652668. The formula is kJ/m² = BTU/ft² × 11.35652668.
- Is this conversion exact?
- Yes. Both units have exact definitions, but the factor has more decimal places than can be shown, so displayed results are rounded. The calculator works with 50 significant digits before rounding.
- Which is larger, a kilojoule per square meter or a BTU per square foot?
- A BTU per square foot is about 11.35652668 times larger than a kilojoule per square meter. In other words, a kilojoule per square meter is about 0.08805509184 of a BTU per square foot.