What this calculator does
Weighted blanket size works out recommended blanket weight from body weight, using the common 10% rule. Enter your own figures above and the answer updates as you type: nothing is fixed in the code, so the result reflects exactly the numbers you supply.
The formula this calculator evaluates is printed under the tool and explained below, so you can check the working by hand or reuse it in a spreadsheet.
The formula
FormulaBlanket weight (kg) = body weight (kg) / 10 + 0.68 kg
The inputs explained
| Field | What to enter |
|---|---|
| Body weight (kg) | A number, measured in kg. Starts at 70. |
Worked examples
Every figure in the tables below is produced by this page’s own calculator at build time, so the numbers and the tool always agree. Select any row to load that scenario.
How the answer changes with body weight
Every other input is held at the calculator’s starting values while body weight varies. Select any row to load that scenario into the calculator.
How the answer changes with body weight
| Body weight (kg) | Recommended blanket weight | In pounds | General guideline range |
|---|---|---|---|
| 35 | 4.2 kg | 9.2 lb | 2.5–4.2 kg (7–12% of body weight) |
| 52.5 | 5.9 kg | 13.1 lb | 3.7–6.3 kg (7–12% of body weight) |
| 70 | 7.7 kg | 16.9 lb | 4.9–8.4 kg (7–12% of body weight) |
| 105 | 11.2 kg | 24.6 lb | 7.4–12.6 kg (7–12% of body weight) |
| 140 | 14.7 kg | 32.4 lb | 9.8–16.8 kg (7–12% of body weight) |
| 210 | 21.7 kg | 47.8 lb | 14.7–25.2 kg (7–12% of body weight) |