This maintenance fluid calculator (4-2-1 rule) reference table shows the hourly maintenance fluid for a range of body weight values. Every figure is computed with the same engine that powers our Maintenance Fluid Calculator (4-2-1 Rule), so the numbers are exact.
| Body weight | Hourly maintenance fluid | Daily maintenance fluid |
|---|---|---|
| 6.3 kg | 25.2 | 605 |
| 13 kg | 46.0 | 1,104 |
| 19 kg | 58.0 | 1,392 |
| 25 kg | 65.0 | 1,560 |
| 38 kg | 78.0 | 1,872 |
| 50 kg | 90.0 | 2,160 |
| 75 kg | 115.0 | 2,760 |
| 130 kg | 170.0 | 4,080 |
| 180 kg | 220.0 | 5,280 |
| 250 kg | 290.0 | 6,960 |
How to use this table
Find the row closest to your body weight and read across to the hourly maintenance fluid. For a value between two rows, the real figure sits between them — or enter your exact numbers in the Maintenance Fluid Calculator (4-2-1 Rule) for a precise answer.
Need a value that is not in the table? — the Maintenance Fluid Calculator (4-2-1 Rule) does it instantly, for free, with the formula and a worked example built in.
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