Tog to RSI (metric R)
Type a value in tog to get it in RSI instantly.
2RSI
That's 1.48× as insulating as a winter duvet, while an insulated wall is 1.25× better. That is a U-value of about 0.5 W/m²·K.
Convert the other way: RSI to tog
What it means
How well does it insulate?
R-values here are for the material alone. Real walls lose extra heat through studs, gaps and joints.
The math
How to convert tog to RSI
To convert tog to RSI (metric R), multiply by 0.1.
Example: 20 tog × 0.1 = 2 RSI.
In the other direction, 1 RSI = 10 tog.
Every unit
Your insulation in every unit
Tables
tog to RSI conversion table
| tog | RSI |
|---|---|
| 1 tog | 0.1 RSI |
| 2 tog | 0.2 RSI |
| 3 tog | 0.3 RSI |
| 5 tog | 0.5 RSI |
| 8 tog | 0.8 RSI |
| 11 tog | 1.1 RSI |
| 13 tog | 1.3 RSI |
| 15 tog | 1.5 RSI |
| 19 tog | 1.9 RSI |
| 21 tog | 2.1 RSI |
| 30 tog | 3 RSI |
| 38 tog | 3.8 RSI |
| 49 tog | 4.9 RSI |
| 60 tog | 6 RSI |
RSI to tog conversion table
| RSI | tog |
|---|---|
| 1 RSI | 10 tog |
| 2 RSI | 20 tog |
| 3 RSI | 30 tog |
| 5 RSI | 50 tog |
| 8 RSI | 80 tog |
| 11 RSI | 110 tog |
| 13 RSI | 130 tog |
| 15 RSI | 150 tog |
| 19 RSI | 190 tog |
| 21 RSI | 210 tog |
| 30 RSI | 300 tog |
| 38 RSI | 380 tog |
| 49 RSI | 490 tog |
| 60 RSI | 600 tog |
Quick answers
Quick answers
- How many RSI is 1 tog?
- 1 tog is 0.1 RSI.
- How many RSI is 10 tog?
- 10 tog is 1 RSI.
- How many RSI is 20 tog?
- 20 tog is 2 RSI.
The units
About these units
Tog (tog)
The bedding unit: one tog is 0.1 RSI. A winter duvet is 13.5 tog.
RSI (metric R) (RSI)
The metric resistance: square meter-kelvins per watt. Used everywhere except the US.
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