What speed should I get from Three broadband?

Three offers speeds up to 2Gb on SIRO fibre. Your actual speed depends on your plan, location, and connection type (FTTH fibre (SIRO)). You should expect to get at least 80% of your plan's advertised speed. Run the test above to check.

Why is my Three broadband slow?

Common reasons for slow Three broadband include: WiFi interference from walls or other devices, distance from your router, network congestion during peak hours (7-10pm), an outdated router, or too many connected devices. Try connecting via ethernet cable and running the speed test again to rule out WiFi issues.

How do I test my Three broadband speed?

Click the 'Start Test' button above. For accurate results: connect via ethernet cable if possible, close other apps, and ensure no other devices are streaming or downloading. The test measures download speed, upload speed, and ping on your Three connection.

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Three speed test

Test your Three broadband speed in seconds. Free, accurate, no ads.

Three uses the SIRO fibre network · Speeds up to 2Gb on SIRO fibre

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About Three broadband

Three Ireland offers home broadband exclusively over the SIRO fibre network, with speeds up to 2Gb. Competitive pricing with no TV bundle required.

Network

SIRO fibre network

Max speed

up to 2Gb on SIRO fibre

Technology

FTTH fibre (SIRO)

Getting the most from your Three connection

Three's broadband is SIRO-only, which means you'll get symmetric upload/download speeds.
Three offers some of the most competitive fibre prices in Ireland.
Check the Three coverage checker to verify SIRO availability at your Eircode.
Three's router supports WiFi 6. Position it centrally for the best whole-home coverage.

See Three broadband plans Broadband speed test Ireland

Is your Three speed good enough?

Compare your test result to these recommended speeds for common activities.

Activity	Minimum speed
Email & web browsing	10 Mbps
HD video streaming (Netflix, Disney+)	25 Mbps
4K streaming & video calls	50 Mbps
Online gaming (low latency)	50+ Mbps
Working from home (multiple users)	100+ Mbps

Not happy with your Three speed?

Compare all Irish broadband providers to find a faster, cheaper plan for your area.

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Frequently asked questions

A good broadband speed in Ireland depends on your household needs. For general browsing and HD streaming, 50-100 Mbps is sufficient. For 4K streaming, gaming, and multiple users, 150-500 Mbps is recommended. For heavy users and large households, 500+ Mbps fibre connections are ideal. The median fixed broadband speed in Ireland is around 220 Mbps (Ookla, March 2026).