Convert MB to GB instantly using a precise conversion factor.
Divide decimal megabytes by 1,000. The calculator applies this relationship immediately and supports positive, negative, and decimal values where appropriate.
This conversion is commonly useful for file sizes, storage plans, downloads, and mobile data.
| MB | GB |
|---|---|
| 1 MB | 0.001 GB |
| 5 MB | 0.005 GB |
| 10 MB | 0.01 GB |
| 25 MB | 0.025 GB |
| 100 MB | 0.1 GB |
For 10 MB, multiply 10 by 0.001. The result is 0.01 GB.
Divide decimal megabytes by 1,000.
Yes. Enter any decimal value and the result updates automatically.
Digital storage uses both decimal and binary conventions. Decimal prefixes use powers of 1,000, while binary prefixes use powers of 1,024 and are properly named kibibyte, mebibyte, and gibibyte. Product packaging and operating systems may display different-looking capacities because they choose different conventions.
Bits and bytes are also different: eight bits make one byte. Network speeds are commonly stated in bits per second, while file sizes are commonly stated in bytes. This calculator states the convention in its formula so you can interpret the result rather than assuming every “mega” or “giga” label means the same thing.
The calculation runs locally in your browser: the number you enter is multiplied or divided using the stated factor, and the result is formatted for readability. Convertly does not send calculator entries to a server. We preserve more precision internally than is normally useful on screen, so you can enter decimals without the calculator repeatedly rounding intermediate values.
Reviewed: September 3, 2026. Conversion relationships are checked against recognized measurement definitions, including the International System of Units and U.S. National Institute of Standards and Technology measurement guidance. Read our calculation methodology and source policy for definitions, rounding rules, limitations, and correction procedures.
Before converting, confirm that the input unit matches the value you have and that the output unit is the one required. Enter the unrounded source value whenever possible. After calculating, choose a sensible number of decimal places for the task rather than copying every digit automatically.
A useful cross-check is to estimate the direction and approximate size of the answer. Converting to a smaller unit usually produces a larger number; converting to a larger unit usually produces a smaller number. If the result differs greatly from that expectation, check for a misplaced decimal, a confused unit abbreviation, or the reverse conversion. The formula and worked example on this page are provided so the result can be independently checked.