Use the interactive U-100 units ↔ mL calculator
A U-100 scale contains 100 units per 1 mL. In this scale, each displayed unit represents 0.01 mL.
U-100 units = liquid volume in mL × 100
U-100 volume conversion
| Liquid volume | U-100 units |
|---|---|
| 0.01 mL | 1 unit |
| 0.05 mL | 5 units |
| 0.10 mL | 10 units |
| 0.25 mL | 25 units |
| 0.30 mL | 30 units |
| 0.50 mL | 50 units |
| 1.00 mL | 100 units |
Common syringe capacities in the app
0.3 mL U-100 syringe
Maximum scale: 30 U-100 units. The app uses a distinct high-contrast label and adjusts the visual markings to this capacity.
0.5 mL U-100 syringe
Maximum scale: 50 U-100 units. The result remains the same volume, while the displayed barrel and scale match this selected capacity.
1 mL U-100 syringe
Maximum scale: 100 U-100 units. The app warns when a calculated volume exceeds the selected syringe’s capacity.
Why syringe capacity matters
A calculated result can represent the same volume on different U-100 capacities, but the printed spacing and smallest marked increment may differ between actual products. Always match the app’s selected capacity to the physical syringe and verify its printed scale.