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Data Transfer Rate Converter

Mbps • MB/s • Gbps • Kbps

Speed / Rate ⓘ

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⚡ Quick Conversions — tap one

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Enter a speed to convert

How to Use the Data Transfer Rate Converter

Enter a rate — your internet speed or transfer rate as a positive number.
Select From unit — internet plans use Mbps (megabits); download managers show MB/s (megabytes).
Select To unit — pick what you want to see it in.
Read the result + download times — see the converted rate plus how long real files take to download at that speed.
Remember the ÷8 rule — divide Mbps by 8 to get MB/s, because 1 byte = 8 bits.

Why Use This Data Transfer Converter

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Bits vs Bytes Solved

Internet speeds are in bits, file sizes in bytes. We handle the ÷8 automatically so you stop second-guessing.

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Real Download Times

See exactly how long a 1 GB file, 5 GB movie, or 50 GB game takes at your connection's speed.

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100% Private

All conversions run in your browser — no server, no account, nothing sent anywhere.

Data Transfer Rate Guide — Mbps, MB/s, Gbps Explained

The single biggest source of confusion in internet speeds is the difference between bits and bytes. Internet service providers advertise plans in megabits per second (Mbps), while operating systems, browsers, and download managers report transfer speed in megabytes per second (MB/s). Because 1 byte = 8 bits, your actual download speed in MB/s is roughly one-eighth of your plan's Mbps number. A 100 Mbps plan downloads at about 12.5 MB/s — not 100 MB/s.

The conversion that matters most: divide Mbps by 8 to get MB/s. 100 Mbps ÷ 8 = 12.5 MB/s. 1 Gbps (1,000 Mbps) ÷ 8 = 125 MB/s. 25 Mbps ÷ 8 = 3.125 MB/s. Going the other way, multiply MB/s by 8: a 10 MB/s download is running at 80 Mbps. Data-transfer rates use the decimal (SI) standard where "kilo" = 1,000, "mega" = 1,000,000, so 1 Mbps = 1,000 Kbps = 1,000,000 bps.

Estimating download time: divide the file size (in the same byte units) by your speed in MB/s. A 5 GB movie (5,000 MB) at 12.5 MB/s takes 5,000 ÷ 12.5 = 400 seconds ≈ 6.7 minutes. The same movie on a 1 Gbps connection (125 MB/s) takes just 40 seconds. Real-world speeds are usually 10–20% lower than the theoretical maximum due to overhead, Wi-Fi loss, and server limits.

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Common Internet Tiers

DSL: 10–25 Mbps (1.25–3.1 MB/s). Cable: 100–500 Mbps (12.5–62.5 MB/s). Fiber: 1 Gbps (125 MB/s). 5G home: 100–600 Mbps. Streaming 4K needs ~25 Mbps.

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Streaming Needs

SD video: 3 Mbps. HD (1080p): 5–8 Mbps. 4K UHD: 25 Mbps. Video call: 1.5–3 Mbps. Online gaming: 3–6 Mbps (latency matters more than raw speed).

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Download Time @ 100 Mbps

(12.5 MB/s) — 1 GB ≈ 80 s. 5 GB movie ≈ 6.7 min. 50 GB game ≈ 67 min. 25 MB album ≈ 2 s. On 1 Gbps: 50 GB game ≈ 6.7 min.

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The Units

1 byte = 8 bits. 1 Kbps = 1,000 bps. 1 Mbps = 1,000 Kbps. 1 Gbps = 1,000 Mbps. MB/s uses bytes (capital B); Mbps uses bits (lowercase b). The case of that one letter changes the value 8×.

Data Transfer Rate FAQ

How do I convert Mbps to MB/s? ▾

Divide by 8. Because 1 byte = 8 bits, megabits per second (Mbps) divided by 8 gives megabytes per second (MB/s). Examples: 100 Mbps ÷ 8 = 12.5 MB/s. 50 Mbps ÷ 8 = 6.25 MB/s. 1 Gbps = 1,000 Mbps ÷ 8 = 125 MB/s. To go back, multiply MB/s by 8 to get Mbps.

Why is my download speed so much lower than my internet plan? ▾

Two reasons. First, the bits-vs-bytes mismatch: your 100 Mbps plan downloads at about 12.5 MB/s, which looks 8× slower but is correct. Second, real-world overhead: Wi-Fi interference, network congestion, server-side limits, and protocol overhead typically reduce throughput by 10–20% below the advertised maximum. A 100 Mbps plan realistically delivers 10–11 MB/s.

How long to download a 50 GB game? ▾

Divide the size by your speed in MB/s. 50 GB = 50,000 MB. At 100 Mbps (12.5 MB/s): 50,000 ÷ 12.5 = 4,000 seconds ≈ 67 minutes. At 500 Mbps (62.5 MB/s): ≈ 13 minutes. At 1 Gbps (125 MB/s): ≈ 6.7 minutes. Add 10–20% for real-world overhead.

What internet speed do I need for 4K streaming? ▾

Netflix and most services recommend at least 25 Mbps (about 3.1 MB/s) per 4K stream. For multiple 4K streams at once, multiply: two 4K streams need ~50 Mbps. HD (1080p) needs 5–8 Mbps per stream, and a video call needs 1.5–3 Mbps. These are sustained rates, so a stable connection matters more than peak speed.

Is data transfer measured in 1000s or 1024s? ▾

Data transfer rates use the decimal (SI) standard: 1 Mbps = 1,000 Kbps = 1,000,000 bps. This differs from data storage, where operating systems often use binary (1 MB = 1,024 KB). Networking and telecom have always used powers of 1,000 for transfer rates, so this converter uses 1,000-based units for all rate conversions.