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Density and Mass

g/mLtoSG

Convert grams per millilitre (g/mL) to specific gravity (water) (SG).

Factor1 g/mL = 1 SG

Converter

g/mL

Accepts numbers or expressions, e.g. 150 + 14.7

Result
0.85SG

Rendered to 6 significant figures.

Formula

Formula
SG = g/mL × 1

Multiply any value in grams per millilitre by 1 to obtain the value in specific gravity (water).

Worked example

Convert 0.85 g/mL to SG.

  1. 01Start with 0.85 g/mL.
  2. 02Multiply by the conversion factor: 0.85 × 1 = 0.85 SG.
Result0.85 g/mL = 0.85 SG

Conversion table

g/mLSG
11
22
55
1010
2020
5050
100100
200200
500500
10001000

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from g/mL to SG?
1 g/mL equals 1 SG. To convert, multiply the value in grams per millilitre by 1.
How do I convert 1 g/mL to SG?
1 g/mL = 1 SG. For any value, multiply by 1.
How do I convert SG back to g/mL?
Divide by the same factor — or equivalently, multiply by 1. So 1 SG = 1 g/mL.
When would I need to convert gram per millilitre to specific gravity (water)?
Density conversions are critical for fluid property datasheets, hydraulic head calculations, and reconciling lab measurements (often g/cm³) with process simulator inputs (kg/m³).
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).

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