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50 units to mL

Insulin syringes are marked in units. On a U-100 syringe 100 units is 1 mL; on a U-40 syringe 40 units is 1 mL.

Medically reviewed by Juan Pablo Frías, MD · · DisclosureUpdated Educational use only
50 units =
0.5mL
on a U-100 insulin syringeShown on a 0.5 mL (50-unit) U-100 syringe: 50 units = 0.5 mL.
On a U-40 syringe, 50 units is 1.25 mL.

The working

U-100: 1 mL = 100 units50 units ÷ 100 = 0.5 mL

This is a fixed unit conversion; it does not depend on the peptide or the vial.

Math only. It does not recommend a dose.

Convert another amount (units to mL)

units
Syringe scale
Result
0.5mL
U-100: 1 mL = 100 units50 units ÷ 100 = 0.5 mL

units to mL: nearby values

The highlighted row is 50 units.

units to mL (U-100 unless stated)
unitsmL (U-100)mL (U-40)
1 units0.01 mL0.025 mL
2 units0.02 mL0.05 mL
5 units0.05 mL0.125 mL
10 units0.1 mL0.25 mL
15 units0.15 mL0.375 mL
20 units0.2 mL0.5 mL
25 units0.25 mL0.625 mL
30 units0.3 mL0.75 mL
40 units0.4 mL1 mL
50 units0.5 mL1.25 mL
60 units0.6 mL1.5 mL
70 units0.7 mL1.75 mL
80 units0.8 mL2 mL
90 units0.9 mL2.25 mL
100 units1 mL2.5 mL

More conversions

Units to mL
5 units10 units20 units25 units30 units40 units50 units100 units
50 units to mg0.1 mL to units0.25 mL to units0.5 mL to units1 mL to units5 units to mgPeptide reconstitution calculatorVial, water and dose to unitsAll convertersmcg, mg, mL and units

Sources

  1. 1Metric (SI) Prefixes (NIST Reference on Constants, Units, and Uncertainty)National Institute of Standards and Technology (NIST) · 2025physics.nist.govAccessed 2 Oct 2026
  2. 2BASAGLAR (insulin glargine) injection, prescribing information (DailyMed)U.S. Food and Drug Administration / DailyMed (Eli Lilly and Company label) · 2026dailymed.nlm.nih.govAccessed 2 Oct 2026

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