Kilobyte to Megabyte Converter

Digital storage · unit-converter

Convert Kilobyte to Megabyte with fixed input and output units, a step-by-step formula line, and reference tables. This hub uses decimal byte units (kB, MB, GB, …) and decimal megabits; the main converter also includes binary (KiB, MiB, …) units.

Calculator

From: Kilobyte (kb)

To: Megabyte (mb)

About Kilobyte

The kilobyte (KB) is 10³ bytes (decimal kB). Binary KiB (1024 B) is a separate unit in the main converter (kibibyte).

About Megabyte

The megabyte (MB) is 10⁶ bytes (decimal). File sizes and download speeds are often discussed in MB alongside megabits per second (Mb/s) for networks.

How to convert kilobytes to megabytes

1 kilobyte is equal to 0.001 megabyte in this tool (values are compared in byte-equivalents):

1 kb = (1,000 B ÷ 1,000,000 B) mb = 0.001 mb

Each kilobyte counts as 1,000 bytes and each megabyte as 1,000,000 bytes, so one kb equals 1,000 ÷ 1,000,000 mb = 0.001 mb.

Let d(kb) be the numeric amount in Kilobyte (kb), and d(mb) the amount in Megabyte (mb). Then:

d(mb) = d(kb) × (1,000 / 1,000,000)

Equivalently, divide by how many kb fit into one mb (bytes per mb divided by bytes per kb):

d(mb) = d(kb) ÷ 1000

Or: megabyte = kilobyte ÷ 1000

Examples

Example #1: Convert 1 kb to megabyte

1 kb = 1 kb × (1,000/1,000,000) mb = 0.001 mb

1 kb = 1 kb ÷ 1000 = 0.001 mb

Example #2: Convert 10 kb to megabyte

10 kb = 10 kb × (1,000/1,000,000) mb = 0.01 mb

10 kb = 10 kb ÷ 1000 = 0.01 mb

Summary

To convert Kilobyte to Megabyte, multiply the value in kb by the ratio of bytes per kb divided by bytes per mb. Equivalently: value_mb = value_kb × (1000 / 1000000). Numerically, 1 kb equals 0.001 mb.

Relationship context

Both units are byte-based units (decimal SI: kB, MB, GB, …). Factors are fixed relative to one byte, so conversions are exact in floating-point arithmetic for this tool. The factor from Kilobyte to Megabyte is 1.000000e-3 (1 kb = 0.001 mb).

Conversion tables

Kilobyte (kb)Megabyte (mb)
0.10.0001
10.001
20.002
30.003
40.004
50.005
60.006
70.007
80.008
90.009
Kilobyte (kb)Megabyte (mb)
100.01
200.02
300.03
400.04
500.05
600.06
700.07
800.08
900.09
1000.1

Conversions outside the hub list

The grid on the category page lists hub units only. These pairs include at least one unit outside that hub set (same tools: formulas and tables on each page).