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Giga to Mega Converter

1 giga unit is exactly 1000 mega units. Convert giga units (G) to mega units (M) below: type a value and the result updates as you type.

G to M calculator

Dot or comma decimals and scientific notation (1e-3) work.

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Result

Giga to Mega conversion

1 G = 1000 Mone giga unit in mega units

1 M = 0.001 Gone mega unit in giga units

Giga (G): The SI prefix giga (G): a factor of 10⁹, which is one billion (10⁹).

Mega (M): The SI prefix mega (M): a factor of 10⁶, which is one million (10⁶).

Source:SI Brochure, 9th edition (BIPM, 2019)

How to convert giga units to mega units

To convert giga units to mega units, multiply the number of giga units by 1000.

Formula

M = G × 1000

Examples

  • 5 G = 5 × 1000 = 5000 M
  • 25 G = 25 × 1000 = 25000 M
  • 100 G = 100 × 1000 = 100000 M

Giga to Mega conversion table

Giga to Mega
Giga (G)Mega (M)
0.1 G100 M
0.5 G500 M
1 G1000 M
2 G2000 M
3 G3000 M
5 G5000 M
10 G10000 M
20 G20000 M
25 G25000 M
50 G50000 M
100 G100000 M
250 G250000 M
500 G500000 M
1000 G1000000 M

Values rounded to 10 significant digits where needed.

Common conversions

Frequently asked questions

How many mega units are in one giga unit?
One giga unit is exactly 1000 mega units.
How do I convert mega units to giga units?
To convert mega units to giga units, multiply the number of mega units by 0.001. The formula is G = M × 0.001.
Is this conversion exact?
Yes. Both units have exact definitions and the factor 1000 is exact. Displayed results are only rounded when they have many decimal places.
Which is larger, a giga unit or a mega unit?
A giga unit is 1000 times larger than a mega unit. In other words, a mega unit is exactly 1/1000 of a giga unit.