RSI (metric R) to tog
Type a value in RSI to get it in tog instantly.
200tog
That's 2× as insulating as passive house insulation — nothing on our list beats it. That is a U-value of about 0.05 W/m²·K.
Convert the other way: tog to RSI
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 RSI to tog
To convert RSI (metric R) to tog, multiply by 10.
Example: 20 RSI × 10 = 200 tog.
In the other direction, 1 tog = 0.1 RSI.
Every unit
Your insulation in every unit
Tables
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 |
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 |
Quick answers
Quick answers
- How many tog is 1 RSI?
- 1 RSI is 10 tog.
- How many tog is 10 RSI?
- 10 RSI is 100 tog.
- How many tog is 20 RSI?
- 20 RSI is 200 tog.
The units
About these units
RSI (metric R) (RSI)
The metric resistance: square meter-kelvins per watt. Used everywhere except the US.
Tog (tog)
The bedding unit: one tog is 0.1 RSI. A winter duvet is 13.5 tog.
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