§1 Calculators
Water Solver
The reverse of the reconstitution calculator: instead of solving for a draw volume from a water amount, this solves for the water volume that lands a target dose at a specific syringe unit reading — useful when a draw comes out too small to measure precisely.
Educational tool only, not medical advice. Figures are documented arithmetic from the inputs you provide, not a recommendation for any individual's dose. Consult a qualified provider before administering anything.
§2 Calculator
- Water to add
- 2 mL
§3 Worked example
For a 10 mg vial and a 250 mcg dose, landing a 5-unit draw on a U-100 syringe requires2 mL of water.
§4 Reference table
Required water volume by target unit draw, for a fixed 10 mg vial and 250 mcg dose on a U-100 syringe.
| Target draw | Water needed |
|---|---|
| 1.0 units | 0.4 mL |
| 2.0 units | 0.8 mL |
| 3.0 units | 1.2 mL |
| 5.0 units | 2 mL |
| 10.0 units | 4 mL |
Looking for compound-specific dosing evidence? See the compound directory.