Data Transfer Rate

Convert data transfer rates between bit/s, kbps, Mbps, Gbps, Tbps, and bytes per second (MB/s, GB/s) in your browser. No upload, no signup — your numbers stay on your device.

Conversions

Output

0.001

Kilobit per second

1 Bit per second → Kilobit per second

How was your conversion?

Data Transfer Rate rating: 4.8 / 5.0 (25 reviews)

About Data Transfer Rate Converter

Data Transfer Rate Converter untangles bits and bytes — a frequent source of confusion because ISPs quote speeds in Mbps (megabits per second) while file sizes are in MB (megabytes). The tool converts between bit/s, kbit/s, Mbit/s (Mbps), Gbit/s (Gbps), Tbit/s, and the byte counterparts B/s, kB/s, MB/s, GB/s using the 1 byte = 8 bits ratio and decimal SI prefixes (1 Mbps = 1,000,000 bit/s by default). It also lists KiB/s and MiB/s binary variants so legacy storage tools still parse correctly. The 8× bit-to-byte jump is displayed prominently so an 800 Mbps link reads as 100 MB/s with no manual math. Static page, runs offline.

Best for

Estimating download time when the ISP lists speed in Mbps and the file size in MB
Reading storage benchmark tools that mix binary MB/s with decimal Mb/s
Networking homework comparing T1, fibre, and 5G rates on one axis

Pros

+Bits-per-second and bytes-per-second families, side by side
+Both decimal SI (1 Mbps = 10⁶ bit/s) and binary KiB/MiB variants supported
+Offline after first load; no signup, no analytics on inputs

Cons

−Cannot account for protocol overhead — a 1 Gbps Ethernet link carries ~940 Mbps of payload
−Doesn't simulate throughput vs bandwidth — pure unit conversion only

How to use Data Transfer Rate Converter

1
Enter the source value, color code, or parameters in the input fields.
2
Select the source and destination units or models from the option dropdowns.
3
Watch the output update instantly in real-time as you type or adjust.
4
Copy the converted results to your clipboard with a single click.

Frequently Asked Questions

Why does my 100 Mbps internet download at 12 MB/s, not 100?

Mbps = megabits, MB/s = megabytes. 1 byte = 8 bits, so 100 Mbps ÷ 8 = 12.5 MB/s theoretical max. Real-world overhead (TCP/IP, Wi-Fi retransmits) trims that a bit, which is why a 100 Mbps connection peaks around 11–12 MB/s.

Is 1 Mbps 1,000,000 bit/s or 1,048,576 bit/s?

Networking uses decimal SI prefixes by industry convention: 1 Mbps = 1,000,000 bit/s. Storage sometimes uses binary MiB/Mb (1 MiB = 2²⁰ bytes). Our tool labels both clearly: decimal units by default, with KiB/s and MiB/s available as binary variants.

How do I convert Mbps to GB/s?

Mbps → GB/s requires two steps: divide by 8 (bits to bytes) and divide by 1000 (megabytes to gigabytes). 1000 Mbps = 0.125 GB/s. The tool applies this automatically in one pick.

Why does my Wi-Fi 6 router list 1200 Mbps but real transfers are slower?

1200 Mbps is the PHY rate under ideal interference-free conditions. Shared-bandwidth, overhead, signal attenuation, and protocol negotiation typically deliver 60–70% of PHY in practice — closer to 700–800 Mbps on the wire.

Are my speed calculations uploaded?

No. Conversion uses static factors; everything runs as local JavaScript in your browser, offline-ready, no signup.

FREE

100% Free

No hidden fees, no subscriptions, and no limits. Enjoy complete access to all features gratis.

SIGNUP

No Signup Required

Start converting immediately without creating an account or sharing email address.

PRIVACY

Private & Secure

Your files never leave your device. All processing is completed locally for maximum privacy.

BATCH

Batch Conversion

Convert multiple files simultaneously to save time. Fast and efficient multi-file queue.

LOCAL

Runs in Browser

Utilizes advanced client-side WebAssembly technology to process files directly inside your tab.

FORMATS

200+ Formats

Supports a wide variety of formats including images, documents, audio, video, and more.

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