Kilobytes to Megabytes

Convert KB to MB instantly — decimal (SI), with a table, common file sizes, and a live calculator.

1 KB equals 0.001 MB.

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Result (MB)0.001 MB

KB to MB table

KBMB
1 KB0.001 MB
2 KB0.002 MB
3 KB0.003 MB
5 KB0.005 MB
10 KB0.01 MB
15 KB0.015 MB
20 KB0.02 MB
25 KB0.025 MB
30 KB0.03 MB
40 KB0.04 MB
50 KB0.05 MB
60 KB0.06 MB
75 KB0.075 MB
90 KB0.09 MB
100 KB0.1 MB
120 KB0.12 MB
150 KB0.15 MB
200 KB0.2 MB
250 KB0.25 MB
300 KB0.3 MB
400 KB0.4 MB
500 KB0.5 MB

MB to KB (reverse)

MBKB
1 MB1000 KB
2 MB2000 KB
3 MB3000 KB
5 MB5000 KB
10 MB10000 KB
15 MB15000 KB
20 MB20000 KB
25 MB25000 KB
30 MB30000 KB
40 MB40000 KB
50 MB50000 KB
60 MB60000 KB
75 MB75000 KB
90 MB90000 KB
100 MB100000 KB
120 MB120000 KB
150 MB150000 KB
200 MB200000 KB
250 MB250000 KB
300 MB300000 KB
400 MB400000 KB
500 MB500000 KB

Common file sizes

KBMB
5 KB0.005 MB
10 KB0.01 MB
25 KB0.025 MB
50 KB0.05 MB
75 KB0.075 MB
100 KB0.1 MB
120 KB0.12 MB
150 KB0.15 MB
200 KB0.2 MB
300 KB0.3 MB
400 KB0.4 MB
500 KB0.5 MB

How it scales

0.030.050.080.10255075100KB

1 GB in other units

1000MB1000000KB1000000000bytes

The ratio at a glance

1 KB0 MB

Decimal vs. binary — why 1 GB isn't always 1 GB

This page uses the decimal (SI) convention: 1 KB = 1000 bytes, 1 MB = 1000 KB, 1 GB = 1000 MB, and 1 TB = 1000 GB. That is how hard-drive and SSD makers, Google, and macOS state capacity. Windows and RAM, by contrast, use the binary (IEC) convention, where 1 KiB = 1024 bytes and 1 GiB = 1024 MiB. The gap grows with size: 1 GiB = 1.073741824 GB, which is why a 1 TB drive (1000 GB) shows as about 931 GiB in Windows. No storage is missing — these are simply two different measuring systems.

Data-storage conversions are exact and rest on fixed factors — for more unit pairs, use our data storage conversion hub.

Related conversions

Frequently asked questions

How many MB are in 1 KB?

1 KB equals 0.001 MB.

How many MB are in 2 KB?

2 KB equal 0.002 MB.

How do I convert KB to MB?

Divide the amount in KB by 1000 to get MB.

Is 1 GB equal to 1000 MB or 1024 MB?

On this page we use the decimal (SI) convention: 1 GB = 1000 MB, 1 MB = 1000 KB, and so on. That is what storage manufacturers, Google, and macOS use. The binary (IEC) convention (1 GiB = 1024 MiB), used by Windows and RAM, gives different numbers: 1 GiB = 1.073741824 GB.

Why does my computer show less space?

Hard-drive and SSD makers state capacity in decimal units (1 TB = 1000 GB = 1,000,000,000,000 bytes). Windows, however, counts in binary and reports the same capacity as GiB (dividing by 1024 instead of 1000). So a 1 TB drive shows as about 931 GiB in Windows — no space is missing, it is just a different unit (1 GiB = 1.073741824 GB). macOS has shown decimal GB since OS X 10.6.

What are these data-storage units used for?

Bytes and bits are the smallest units — 1 byte = 8 bits; bits per second measure bandwidth. Kilobytes (KB) and megabytes (MB) describe documents, photos, and songs; gigabytes (GB) and terabytes (TB) describe hard drives, SSDs, and data plans. All values here are decimal (SI).

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