Bandwidth Calculator
What is bandwidth planning?
Bandwidth planning turns request demand and payload size into a link-capacity decision. It protects latency during peaks while making compression, headroom, transfer windows, and cost assumptions explicit.
Step 1
Model
Model requests per second, payload size, compression, protocol overhead, peak demand, target utilization, link capacity, and a scheduled bulk transfer.
Step 2
Observe
See average and peak throughput, monthly transfer, safe headroom, overload consequences, the next practical capacity tier, and an editable transfer-cost estimate.
Step 3
Challenge
Inject a regional-failover challenge, then recover by changing compression, capacity, or the bulk-transfer window. The healthy state should return without hiding the formula that changed it.
Size the path, then break it safely
Turn workload demand into throughput, test the surviving link, and schedule bulk traffic without hiding the math.
Capacity healthy
265 Mbps remains inside the target envelope.
Peak utilization
57%
Wire payload
39.4 KB
45% compression, then 12% overhead
Average demand
378 Mbps
1,200 req/s continuously
Peak demand
1.14 Gbps
3x peak
30-day transfer
122.6 TB
310 Mbps saved by compression
The target line reserves operational headroom; physical capacity is the hard ceiling.
Recommended provisioned tier: 2.5 Gbps
Application demand
3,600 req/s
Encoded traffic
1.14 Gbps
Surviving link
2 Gbps
The transfer shares only the safe spare capacity left after peak service traffic.
Required transfer rate
4.44 Gbps
Safe spare capacity
265 Mbps
Estimated egress
$600
Extend the window to at least 100.8 hours, move the job off-peak, or add capacity.
- Continuous demand
- req/s × effective KB × 8 ÷ 1,000,000 = Gbps
- Safe capacity
- link Gbps × surviving path × utilization target
- Transfer rate
- TB × 1,000 × 8 ÷ window seconds = Gbps