Clo (clo)
Unit of clothing insulation, defined as 0.155 m²·K/W: roughly a business suit.
What is a clo?
- Symbol
- clo
- Quantity
- Thermal Insulance (R-value)
- Unit system
- other
- Definition
- Unit of clothing insulation, defined as 0.155 m²·K/W: roughly a business suit.
- Exact
- Yes, the value is exact by definition
- Source
- NIST Special Publication 811 (2008), Appendix B.8
Common applications
Used in thermal comfort studies and building climate design to rate clothing insulation. A typical business suit is about 1 clo.
Clo in other thermal insulance (r-value) units
- 1 clo = 0.155 m²·K/WSquare meter kelvin per watt (RSI)
- 1 clo ≈ 0.8801308179 ft²·°F·h/BTUR-value (US)
- 1 clo = 1.55 togTog
Clo quick reference
| Clo | Square meter kelvin per watt (RSI) | R-value (US) | Tog |
|---|---|---|---|
| 1 clo | = 0.155 m²·K/W | ≈ 0.8801308179 ft²·°F·h/BTU | = 1.55 tog |
| 10 clo | = 1.55 m²·K/W | ≈ 8.801308179 ft²·°F·h/BTU | = 15.5 tog |
| 100 clo | = 15.5 m²·K/W | ≈ 88.01308179 ft²·°F·h/BTU | = 155 tog |
| 1000 clo | = 155 m²·K/W | ≈ 880.1308179 ft²·°F·h/BTU | = 1550 tog |
Where the clo fits
The next smaller thermal insulance (r-value) unit is the tog (tog). 1 clo = 1.55 tog, and 1 tog ≈ 0.6451612903 clo.
The next larger thermal insulance (r-value) unit is the R-value (US) (ft²·°F·h/BTU). 1 clo ≈ 0.8801308179 ft²·°F·h/BTU, and 1 ft²·°F·h/BTU ≈ 1.136194733 clo.
Frequently asked questions
- How many square meter kelvins per watt are in one clo?
- One clo = 0.155 m²·K/W (square meter kelvins per watt).
- How many R-value units (US) are in one clo?
- One clo ≈ 0.8801308179 ft²·°F·h/BTU (R-value units (US)).
- How many togs are in one clo?
- One clo = 1.55 tog (togs).