T-Mobile Fiber Speed Test
Test your T-Mobile Fiber internet speed. See if you're getting the download and upload speeds you're paying for.
Click Start to test your T-Mobile Fiber speed
T-Mobile Fiber Advertised Speeds
Compare your speed test results against T-Mobile Fiber's plan speeds to see if you're getting what you pay for.
T-Mobile Fiber Plans
| Plan | Download | Upload | Price |
|---|---|---|---|
| T-Mobile Fiber 500 | 500 Mbps | 500 Mbps | $55.00/mo |
| T-Mobile Fiber 1 Gig | 1 Gbps | 1 Gbps | $85.00/mo |
| T-Mobile Fiber 2 Gig | 2 Gbps | 2 Gbps | $70.00/mo |
Not Getting the T-Mobile Fiber Speeds You Expect?
If your speed test shows significantly less than what T-Mobile Fiber advertises, you may have better options available. Our experts can help you find a faster, more reliable provider.
Alternatives to T-Mobile Fiber
If your T-Mobile Fiber speeds aren't meeting your needs, here are other providers to consider:
T-Mobile Fiber Speed Test FAQ
How accurate is the T-Mobile Fiber speed test?
Our speed test measures your actual connection speed using Cloudflare's global network of servers. It tests download speed, upload speed, ping latency, and jitter. For the most accurate results, connect via ethernet cable, close other apps, and run the test multiple times. Results reflect your current connection — not what T-Mobile Fiber advertises.
What speed should I expect from T-Mobile Fiber?
T-Mobile Fiber offers plans with speeds up to 2 Gbps download and 2 Gbps upload. Your actual speeds depend on your plan, connection type, network congestion, equipment, and distance from the provider's infrastructure. If your speed test shows significantly less than your plan's advertised speed, contact T-Mobile Fiber support or consider switching.
Why is my T-Mobile Fiber internet slow?
Common causes include: network congestion during peak hours, outdated router/modem, too many connected devices, WiFi interference, or throttling. Try restarting your router, using a wired connection, or running the speed test at different times. If speeds are consistently below 80% of your plan's advertised speed, you may want to contact support or explore alternatives.
How can I improve my T-Mobile Fiber speed?
1) Restart your modem and router. 2) Use ethernet instead of WiFi. 3) Position your router centrally. 4) Upgrade your router if it's more than 3 years old. 5) Reduce connected devices. 6) Check for firmware updates. 7) Contact T-Mobile Fiber to verify you're on the right plan. 8) Consider upgrading your plan or switching providers if speeds remain poor.
Is T-Mobile Fiber speed good enough for gaming and 4K streaming?
Yes. T-Mobile Fiber's top plan offers 2 Gbps, which is excellent for competitive gaming, 4K streaming on multiple devices, large file downloads, and smart home devices.