18 mg/dL to mmol/L (Urea (BUN-based))

18 mg/dL urea (bun-based) converted to mmol/L using the correct factor for this test.

18 mg/dL urea (bun-based) is approximately 6.43 mmol/L.

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Conversion settings

Standard conversion for this test between mmol/L and mg/dL.

6.43
Conversion factor: 1 mmol/L ≈ 2.8 mg/dL
Nearby mg/dL values and their mmol/L equivalents
mg/dL
mmol/L
13
4.64
15.5
5.54
18
6.43
20.5
7.32
23
8.21

How this urea conversion is calculated

General formula: mg/dL ÷ 6 = mmol/L

  • 1. Start with the value in mg/dL: 18.
  • 2. Divide by the analyte-specific factor: 18 ÷ 6.
  • 3. Result in mmol/L: ≈ 6.428571428571429.

Tips and important notes for urea

  • Urea is produced when the body breaks down protein and is cleared by the kidneys.
  • High urea can reflect kidney impairment, dehydration, high protein intake, or bleeding in the gut.
  • Different labs may report either urea or urea nitrogen; they use different conversion factors.

Common questions about this urea value