Bandwidth Calculator
Calculate how long a file takes to download or upload given its size (MB or GB) and your connection speed (Mbps or MB/s). Results include a formatted time, the effective data rate, and a comparison table showing transfer time at common connection speeds.
TheCalculators — Bandwidth Calculator
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Transfer Time
1 min 20 s
500 MB at 50 Mbps (6.25 MB/s effective)
Transfer details
- File Size
- 500 MB (500,000,000 bytes)
- Connection Speed
- 50 Mbps
- Effective Rate
- 6.25 MB/s = 50 Mbps
- Total Data
- 4 gigabits
- Transfer Time
- 1 min 20 s
- Per GB at this Rate
- 160 s
Time at common connection speeds
Decimal units are used (1 GB = 1,000 MB; 1 Mbps = 1,000,000 bit/s). Real transfers are slower than the raw rating because of protocol overhead, Wi-Fi, and server limits — expect 70–90% of advertised speed.
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Formula
time (s) = file size (bytes) × 8 ÷ speed (bit/s) — MB/s = Mbps ÷ 8
Pro tips
- • 8 bits = 1 byte, so a 100 Mbps line tops out near 12.5 MB/s.
- • For streaming or gaming, latency matters more than raw bandwidth.
FAQ
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