Syringe units calculator
U-100 means 100 units per millilitre. Convert between units and mL, and see the draw rendered on a syringe.
On any U-100 insulin syringe, 100 units = 1 mL — so 1 unit = 0.01 mL, regardless of the syringe's size.
Units to mL reference
| U-100 units | Millilitres |
|---|---|
| 5 units | 0.05 mL |
| 10 units | 0.10 mL |
| 15 units | 0.15 mL |
| 20 units | 0.20 mL |
| 25 units | 0.25 mL |
| 30 units | 0.30 mL |
| 40 units | 0.40 mL |
| 50 units | 0.50 mL |
| 75 units | 0.75 mL |
| 100 units | 1.00 mL |
The unit-to-mL ratio never changes across U-100 syringe sizes — a 0.3 mL, 0.5 mL, and 1.0 mL syringe all use the same 100-units-per-mL scale; they just hold different maximums. Learn to read the markings.