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1 mL to units

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
1 mL =
100units
on a U-100 insulin syringeShown on a 1 mL (100-unit) U-100 syringe: 100 units = 1 mL.
On a U-40 syringe, 1 mL is 40 units.

The working

U-100: 1 mL = 100 units1 mL × 100 = 100 units

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 (mL to units)

mL
Syringe scale
Result
100units
U-100: 1 mL = 100 units1 mL × 100 = 100 units

mL to units: nearby values

The highlighted row is 1 mL.

mL to units (U-100 unless stated)
mLunits (U-100)units (U-40)
0.01 mL1 units0.4 units
0.05 mL5 units2 units
0.1 mL10 units4 units
0.15 mL15 units6 units
0.2 mL20 units8 units
0.25 mL25 units10 units
0.3 mL30 units12 units
0.4 mL40 units16 units
0.5 mL50 units20 units
0.75 mL75 units30 units
1 mL100 units40 units

More conversions

mL to units
0.1 mL0.25 mL0.5 mL1 mL
1 mg to mcg1 mg to units1 mg to mL5 units to mL10 units to mL20 units to mLPeptide 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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