WiFi Throughput Calculator – Real-World Speed
Calculate expected real-world WiFi throughput from WiFi standard and signal strength.
About This Calculator
Calculate expected real-world WiFi throughput from WiFi standard and signal strength. Use the calculator above for instant results.
Worked Examples
- Real-world: 1200 × 50% × 75% = 450 Mbps
Answer: ~450 Mbps real-world
- Real-world: 2400 × 60% × 100% = 1,440 Mbps
Answer: ~1,440 Mbps
- Real-world: 300 × 40% × 20% = 24 Mbps | Very slow
Answer: ~24 Mbps — weak signal drags
Who Uses This Calculator?
Understand real WiFi speed vs advertised.
Plan wireless capacity.
Wireless network design.
Evaluate WiFi performance.
Common Mistakes to Avoid
❌ Advertised speed is under ideal conditions
WiFi 6 at 9.6 Gbps requires many spatial streams, perfect signal, and no interference. Real-world single-device: 500-1500 Mbps.
❌ WiFi is half-duplex
All devices on a channel share the same radio medium. 10 devices each get roughly 1/10 of available throughput when simultaneously active.
Frequently Asked Questions
WiFi 4 vs 5 vs 6?
WiFi 4 (802.11n): 150-600 Mbps. WiFi 5 (ac): 867-3500 Mbps. WiFi 6 (ax): up to 9.6 Gbps theoretical. WiFi 6E adds 6 GHz band.
When does WiFi limit speed?
If internet is 1 Gbps and WiFi is 500 Mbps, WiFi limits you. For internet under 100 Mbps, even WiFi 4 is rarely the bottleneck.
Wired vs WiFi?
Wired Ethernet is always preferred for: low latency (gaming), high throughput (NAS), stable connection (streaming). Use WiFi for mobility only.