▸ processconvert
Acceleration

gtomGal

Convert standard gravity (g) to milligals (mGal).

Factor1 g = 980665 mGal

Converter

g

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

Result
980665mGal

Rendered to 6 significant figures.

Formula

Formula
mGal = g × 980665

Multiply any value in standard gravity by 980665 to obtain the value in milligals.

Worked example

Convert 1 g to mGal.

  1. 01Start with 1 g.
  2. 02Multiply by the conversion factor: 1 × 980665 = 980665 mGal.
Result1 g = 980665 mGal

Conversion table

gmGal
19.8066e+5
21.9613e+6
54.9033e+6
109.8066e+6
201.9613e+7
504.9033e+7
1009.8066e+7
2001.9613e+8
5004.9033e+8
10009.8066e+8

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from g to mGal?
1 g equals 980665 mGal. To convert, multiply the value in standard gravity by 980665.
How do I convert 1 g to mGal?
1 g = 980665 mGal. For any value, multiply by 980665.
How do I convert mGal back to g?
Divide by the same factor — or equivalently, multiply by 1.019716e-6. So 1 mGal = 1.01972e-6 g.
When would I need to convert standard gravity to milligal?
Acceleration conversions between g and mGal are common in vibration analysis, seismic load calculations, mechanical equipment specifications, and motion-control design. m/s² is the SI standard; g (standard gravity) is widely used in shock, vibration, and ride-quality work.
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).

Related conversions