Convert megabits per second to kilobits per second—or reverse the calculation—with the exact decimal factor of 1,000.
Decimals:
3
Mbps
Multiply this value by 1,000 to get Kbps.
Kbps
Divide this value by 1,000 to get Mbps.
Try an exact example:
How to Convert Mbps to Kbps
Multiply megabits per second by 1,000. 1 Mbps = 1,000 Kbps, so 7.5 Mbps = 7,500 Kbps, 20 Mbps = 20,000 Kbps, and 100 Mbps = 100,000 Kbps.
Kbps = Mbps × 1,000
Mbps and Kbps are decimal bit-rate units. A megabit contains 1,000 kilobits, so multiplying by 1,000 changes the scale without changing the underlying bandwidth or bitrate. No bits are added or removed.
Step 1
Start with the Mbps value.
Step 2
Multiply it by exactly 1,000.
Step 3
Label the result Kbps.
How to Convert Kbps to Mbps
Divide kilobits per second by 1,000. For example, 320 Kbps ÷ 1,000 = 0.32 Mbps, 5,000 Kbps = 5 Mbps, and 10,000 Kbps = 10 Mbps.
Mbps to Kbps
Kbps = Mbps × 1,000
Kbps to Mbps
Mbps = Kbps ÷ 1,000
Fact-checked: decimal SI prefixes; no 1,024 factorReviewed: July 29, 2026Calculation methodology
Is 1 Mbps 1,000 or 1,024 Kbps?
1 Mbps is exactly 1,000 Kbps. The SI prefix kilo means 10³ and mega means 10⁶. Therefore one megabit contains 1,000 kilobits, and adding “per second” to both units does not change that ratio.
Correct decimal rate
1,000 Kbps
1 Mbps = 1,000,000 bits/s; 1 Kbps = 1,000 bits/s.
Do not use
1,024 Kbps
1,024 is a binary scaling number. Binary prefixes must be labeled kibi, mebi and so on.
Using 1,024 gives the wrong answer: for example, it would turn 4 Mbps into 4,096 Kbps instead of the correct 4,000 Kbps. NIST states that alternative binary definitions of the SI prefixes are not permitted.
Mbps to Kbps Conversion Tables
Formula: Kbps = Mbps × 1,000
Mbps to Kbps
Mbps
Kbps
bits/s
1 Mbps
1,000 Kbps
1,000,000
2 Mbps
2,000 Kbps
2,000,000
5 Mbps
5,000 Kbps
5,000,000
7.5 Mbps
7,500 Kbps
7,500,000
10 Mbps
10,000 Kbps
10,000,000
20 Mbps
20,000 Kbps
20,000,000
25 Mbps
25,000 Kbps
25,000,000
30 Mbps
30,000 Kbps
30,000,000
50 Mbps
50,000 Kbps
50,000,000
100 Mbps
100,000 Kbps
100,000,000
200 Mbps
200,000 Kbps
200,000,000
300 Mbps
300,000 Kbps
300,000,000
500 Mbps
500,000 Kbps
500,000,000
Kbps to Mbps
Kbps
Mbps
Decimal kB/s
128 Kbps
0.128 Mbps
16 kB/s
256 Kbps
0.256 Mbps
32 kB/s
320 Kbps
0.32 Mbps
40 kB/s
500 Kbps
0.5 Mbps
62.5 kB/s
1,000 Kbps
1 Mbps
125 kB/s
2,500 Kbps
2.5 Mbps
312.5 kB/s
5,000 Kbps
5 Mbps
625 kB/s
7,500 Kbps
7.5 Mbps
937.5 kB/s
10,000 Kbps
10 Mbps
1,250 kB/s
25,000 Kbps
25 Mbps
3,125 kB/s
Kbps vs kB/s and KiB/s
The letter case and the “i” matter. Kbps is a decimal bit rate; kB/s is a decimal byte rate; KiB/s is a binary byte rate. They are not interchangeable.
You may also see kilobits per second written as kbps, kbit/s or kbits/s, and megabits per second as Mbps or Mbit/s. Those spelling variants do not change the ×1,000 conversion.
Kbps
Kilobits per second. 1 Kbps = 1,000 bits/s.
kB/s
Decimal kilobytes per second. 1 kB/s = 8 Kbps.
KiB/s
Binary kibibytes per second. 1 KiB/s = 8.192 Kbps.
At a constant rate, multiply Kbps by 0.45 to get decimal MB per hour. The derivation is Kbps × 1,000 bits × 3,600 seconds ÷ 8 bits per Byte ÷ 1,000,000 Bytes per MB. This calculates the data represented by the sustained bitrate; protocol, container and retransmission overhead can add more transferred data.
Sustained Kbps rates converted to Mbps, decimal kilobytes per second and decimal megabytes per hour
The conversion is useful whenever two systems display the same rate at different scales—for example, comparing an encoder field in Kbps with a network limit in Mbps, normalizing monitoring dashboards, checking a bitrate configuration, or rewriting a rate for documentation. The calculator converts units only; it does not judge media quality or predict delivered throughput.
Definitions and Sources
The formulas follow NIST's decimal SI definitions and its separate binary-prefix guidance.
1 Mbps = 1,000 Kbps exactly. Data rates use decimal (SI) prefixes, so converting is a clean shift of three decimal places: divide Kbps by 1,000 to get Mbps, or multiply Mbps by 1,000 to get Kbps.
How do I convert Mbps to Kbps?
Multiply the Mbps value by 1,000. For example, 7.5 Mbps × 1,000 = 7,500 Kbps, 20 Mbps = 20,000 Kbps, and 100 Mbps = 100,000 Kbps.
How do I convert Kbps to Mbps?
Divide the Kbps value by 1,000. For example, 320 Kbps ÷ 1,000 = 0.32 Mbps, 5,000 Kbps = 5 Mbps, and 10,000 Kbps = 10 Mbps.
Is 1 Mbps equal to 1,000 or 1,024 Kbps?
1 Mbps equals exactly 1,000 Kbps. Kilo and mega are decimal SI prefixes: kilo is 1,000 and mega is 1,000,000. The number 1,024 belongs to binary prefixes such as kibi, not to Kbps or Mbps.
What is 100 Mbps in Kbps?
100 Mbps equals exactly 100,000 Kbps. Multiply 100 by 1,000; the underlying bit rate does not change, only the unit and number used to express it.
What is 320 Kbps in Mbps?
320 Kbps equals exactly 0.32 Mbps. Divide 320 by 1,000. If that rate is sustained continuously, it also equals 40 kB/s or 144 MB of decimal data per hour before protocol or container overhead.
Is Kbps the same as KB/s?
No. Kbps uses kilobits per second; kB/s uses kilobytes per second. Because one Byte contains 8 bits, 8 Kbps equals 1 kB/s and 320 Kbps equals 40 kB/s. KiB/s is another distinct unit that uses 1,024 Bytes per kibibyte.
Does converting Mbps to Kbps change the actual speed?
No. Mbps and Kbps express the same bit rate at different decimal scales. Converting 20 Mbps to 20,000 Kbps changes the unit label and numerical magnitude, not the bandwidth, bitrate, throughput or transfer time.
How much data does a Kbps bitrate use per hour?
For a sustained decimal bit rate, multiply Kbps by 0.45 to estimate MB per hour. Thus 320 Kbps corresponds to 144 MB per hour and 5,000 Kbps corresponds to 2,250 MB, or 2.25 GB, per hour before additional overhead.
