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Mbps Calculator

Convert network throughput between bps, kbps, Mbps, Gbps, and byte-per-second units.

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Quick Summary

Use this when you need:

Check if an ISP plan in Mbps meets a storage system requirement in MB/s
Estimate file transfer time when only GiB per second specs are known
Explain the difference between marketing megabits and megabytes

You’ll get:Bandwidth

How this is calculated

Formula:

bandwidth_target = bandwidth_source * (source_to_bps / target_to_bps)

In plain language:

Every throughput figure is converted into bits per second, then divided by the target unit's bits per second factor to report Mb, GB, or byte based rates.

The formula is always visible so you can verify the math and explain your numbers to anyone who asks.

What these terms mean

Bandwidth

Bandwidth used in the calculation.

When to use this calculator

Check if an ISP plan in Mbps meets a storage system requirement in MB/s
Estimate file transfer time when only GiB per second specs are known
Explain the difference between marketing megabits and megabytes

Last updated: November 18, 2025

Mbps conversion explained

Internet plans are sold in megabits per second (Mbps), yet storage systems and progress bars show megabytes per second (MB/s). The Mbps Calculator normalizes everything to bits per second, lets you flip between decimal and binary prefixes, and even back-solves transfer times for a given payload.

How the conversion works

Data rate units are multiples of bits per second:

R_{\text{target}} = R_{\text{source}} \times \frac{k_{\text{source}\to\text{bps}}}{k_{\text{target}\to\text{bps}}}

Where $1\,\text{Mbps} = 10^6\,\text{bps}$ , $1\,\text{Gbps} = 10^9\,\text{bps}$ , and $1\,\text{MB/s} = 8\times10^6\,\text{bps}$ . Binary-prefixed units such as MiB/s use powers of two ( $1\,\text{MiB/s} = 8{,}388{,}608\,\text{bps}$ ). Transfer time then follows $t = \frac{\text{bits}}{\text{bps}}$ .

Units and conversions

Unit	Symbol	Relation
Bit per second	bps	Base unit
Kilobit per second	kbps	$1{,}000$ bps
Megabit per second	Mbps	$1{,}000{,}000$ bps
Gigabit per second	Gbps	$1{,}000{,}000{,}000$ bps
Megabyte per second	MB/s	$8{,}000{,}000$ bps
Mebibyte per second	MiB/s	$8{,}388{,}608$ bps

Worked examples

ISP plan sanity check
Convert a 150 Mbps service tier into megabytes per second for a storage dashboard.

R_{\text{MB/s}} = 150\,\text{Mbps} / 8 = 18.75\,\text{MB/s}

Result: expect at most ~18.8 MB/s before protocol overhead.

Transfer time estimate
How long does it take to push a 5 GB (decimal gigabytes) file over a 200 Mbps link?

\text{bits} = 5\,\text{GB} \times 8 = 40\,\text{Gb}\\ t = \frac{40\,\text{Gb}}{0.2\,\text{Gb/s}} = 200\,\text{s} \approx 3.33\,\text{min}

Result: plan on roughly 3 minutes and 20 seconds, then add protocol overhead as needed.

Tips and pitfalls

Marketing materials always cite decimal prefixes (1 Mbps = $10^6$ bps) while operating systems may display binary prefixes (MiB/s); our calculator shows both.
Convert to bytes per second before comparing to disk throughput or USB interface specs because those are quoted in bytes, not bits.
Remember that throughput is different from latency; a 1 Gbps link still may need TCP tuning to achieve the headline rate.
For wireless networks, factor in protocol efficiency (Wi-Fi payload ≈ 60% of raw link rate) when planning transfer times.

References and further reading

Frequently Asked Questions

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Calculator info

Version:: v1.0.0
Sensitivity:: low

Last updated: November 18, 2025

Mbps conversion explained

How the conversion works

Data rate units are multiples of bits per second:

R_{\text{target}} = R_{\text{source}} \times \frac{k_{\text{source}\to\text{bps}}}{k_{\text{target}\to\text{bps}}}

Units and conversions

Unit	Symbol	Relation
Bit per second	bps	Base unit
Kilobit per second	kbps	$1{,}000$ bps
Megabit per second	Mbps	$1{,}000{,}000$ bps
Gigabit per second	Gbps	$1{,}000{,}000{,}000$ bps
Megabyte per second	MB/s	$8{,}000{,}000$ bps
Mebibyte per second	MiB/s	$8{,}388{,}608$ bps

Worked examples

ISP plan sanity check
Convert a 150 Mbps service tier into megabytes per second for a storage dashboard.

R_{\text{MB/s}} = 150\,\text{Mbps} / 8 = 18.75\,\text{MB/s}

Result: expect at most ~18.8 MB/s before protocol overhead.

Transfer time estimate
How long does it take to push a 5 GB (decimal gigabytes) file over a 200 Mbps link?

\text{bits} = 5\,\text{GB} \times 8 = 40\,\text{Gb}\\ t = \frac{40\,\text{Gb}}{0.2\,\text{Gb/s}} = 200\,\text{s} \approx 3.33\,\text{min}

Result: plan on roughly 3 minutes and 20 seconds, then add protocol overhead as needed.

Tips and pitfalls

Marketing materials always cite decimal prefixes (1 Mbps = $10^6$ bps) while operating systems may display binary prefixes (MiB/s); our calculator shows both.
Convert to bytes per second before comparing to disk throughput or USB interface specs because those are quoted in bytes, not bits.
Remember that throughput is different from latency; a 1 Gbps link still may need TCP tuning to achieve the headline rate.
For wireless networks, factor in protocol efficiency (Wi-Fi payload ≈ 60% of raw link rate) when planning transfer times.

Quick Summary

Calculator Tool

How this is calculated

What these terms mean

Bandwidth

When to use this calculator

Mbps conversion explained

How the conversion works

Units and conversions

Worked examples

Tips and pitfalls

References and further reading

Frequently Asked Questions

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Calculator info

Mbps conversion explained

How the conversion works

Units and conversions

Worked examples

Tips and pitfalls

References and further reading

Frequently Asked Questions

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Found an error?

Calculator info