Bandwidth Converter
12.5
100 Mbps = 12.5 MB/s
Download Time Calculator
1 min 20 sec
Bits vs Bytes: ISP vs Real Speed
ISPs advertise in Mbps (bits), but downloads show MB/s (bytes). Divide by 8!
| Advertised | In Bits | Actual Download | Note |
|---|---|---|---|
| 100 Mbps | 100 Mbps | 12.5 MB/s | Divide by 8 |
| 1 Gbps | 1,000 Mbps | 125 MB/s | Gigabit internet |
| 10 Gbps | 10,000 Mbps | 1.25 GB/s | Data center |
Streaming Requirements
| Quality | Bitrate | Per Hour |
|---|---|---|
| Audio (Spotify Normal) | 96 Kbps | ~43 MB |
| Audio (Spotify High) | 160 Kbps | ~72 MB |
| Audio (Spotify Very High) | 320 Kbps | ~144 MB |
| SD Video (480p) | 1.5 Mbps | ~0.7 GB |
| HD Video (720p) | 3 Mbps | ~1.4 GB |
| Full HD (1080p) | 5 Mbps | ~2.3 GB |
| 4K Ultra HD | 25 Mbps | ~11 GB |
| 4K HDR | 40 Mbps | ~18 GB |
Common Connection Speeds
| Type | Download | Upload |
|---|---|---|
| 3G Mobile | 1-5 Mbps | 0.5-1 Mbps |
| 4G LTE | 10-50 Mbps | 5-20 Mbps |
| 5G | 100-1000 Mbps | 50-100 Mbps |
| Basic DSL | 5-15 Mbps | 1-5 Mbps |
| Cable Internet | 25-300 Mbps | 5-35 Mbps |
| Fiber (Basic) | 100-300 Mbps | 100-300 Mbps |
| Fiber (Gigabit) | 1000 Mbps | 1000 Mbps |
| Fiber (Multi-Gig) | 2000-5000 Mbps | 2000-5000 Mbps |
Quick Tips
Mbps vs MB/s
ISPs use Mbps (megabits). Downloads show MB/s (megabytes). 100 Mbps = 12.5 MB/s. Always divide by 8!
Bandwidth vs Throughput
Bandwidth is max capacity. Actual throughput is usually 70-90% due to overhead and congestion.
4K Streaming
Netflix recommends 25 Mbps for 4K. For multiple streams, multiply by number of devices.
Upload Matters Too
Video calls need 3-4 Mbps upload. Cloud backup and streaming yourself needs good upload speed.