1,000 megabytes to gigabytes
1.000 GB
1,000 MB = 1.000 GB, or 1 GB.
gigabytes
1.000GB
1,000 MB = 1.000 GB
The short answer
How many gigabytes is 1,000 megabytes?
1,000 MB = 1.000 GB, which reads as 1 GB. 1 megabyte = 0.001000 gigabytes, so the working is 1,000 × 0.001000 = 1.000.
The working
The factor below is an exact definition rather than a measurement, so nothing is approximated in the arithmetic. The only rounding on this page happens where a number is displayed.
1 megabyte = 0.001000 gigabytes 1,000 × 0.001000 = 1.000
1,000 megabytes as 1 GB
A decimal is the right form for a spreadsheet and the wrong one for almost everything else. Split into whole units, 1,000 MB is 1 GB — the reading you would actually give someone, and the one a tape measure, a scale, or a timetable is marked in.
How much precision do you need?
Each row is the same answer cut at a different number of decimals, with what that choice costs you. Pick the shortest row whose error is smaller than whatever you are measuring with.
| Rounded to | Answer (GB) | Off by |
|---|---|---|
| Whole number | 1 | exact |
| 1 decimal | 1.0 | exact |
| 2 decimals | 1.00 | exact |
Round trip: take 1.000 GB back the other way and you land on 1,000.0000 MB — a drift of 0.0000 MB. That gap is the rounding, not the conversion.
What 1,000 MB looks like
1,000 MB
Netflix puts standard definition on its High setting at up to 1 GB an hour, that is 1,000 MB.
Frequently asked questions
What is 1,000 megabytes in gigabytes?
1,000 megabytes is 1.000 gigabytes. 1 megabyte = 0.001000 gigabytes, so the working is 1,000 × 0.001000 = 1.000.
What is 1,000 megabytes written out in whole units?
1 GB. A decimal answer such as 1.000 GB is the right shape for a form field or a spreadsheet, but the compound form is what a tape measure, a scale, or a schedule actually reads.
How accurate is 1.000 GB?
Rounding to 1.000 GB and converting straight back gives 1,000.0000 MB, a drift of 0.0000 MB from the 1,000 you started with. The factor itself is exact; every bit of that difference comes from the rounding, not the conversion.
Nearby values
Any value at all
MB to GB Converter
Megabytes to gigabytes — and why your drive shows less than the box promised.
Open the mb to gb converter →