What Adapter For
Your answer

What size is a garden hose fitting?

Garden hose fittings in the US are 3/4" garden hose thread (GHT): about 1-1/16" (27 mm) across the threads, with 11.5 threads per inch.

Which kind of end?

Threads inside, with a rubber washerThis end screws onto a faucetThreads on the outsideThis end takes another hose

You most likely have

Garden hose (female end)

The end that screws onto a faucet, with threads inside and a rubber washer.

On the package: 3/4 in. female hose thread, FHT

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Garden hose washers
  • Every size of garden hose has the same 3/4" thread at its ends.
  • If this end leaks, replace its washer before you try tightening harder.

Connect it to

Garden hose (female end)Outdoor faucet or hose male end1/2" pipe, threads on the outside1/2" fitting, threads inside3/4" pipe, threads on the outside3/4" fitting, threads inside1/2" PVC pipe, plain end3/4" PVC pipe, plain endKitchen or bathroom faucetPressure washer
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You most likely have

Outdoor faucet or hose male end

Male hose thread, as on a spigot spout, a washing machine valve or the far end of a hose.

On the package: 3/4 in. male hose thread, MHT

Available on Amazon

Garden hose washers
  • The female end that screws on brings its own washer, so these threads take no tape.
  • Hand-tight plus about a quarter turn is enough.

Connect it to

Garden hose (female end)Outdoor faucet or hose male end1/2" pipe, threads on the outside1/2" fitting, threads inside3/4" pipe, threads on the outside3/4" fitting, threads inside1/2" PVC pipe, plain end3/4" PVC pipe, plain end1/2" drip tubingWashing machine
Start over

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Hoses sold as 1/2", 5/8" and 3/4" all have garden hose thread at their ends. That number is the hose’s inside diameter, not its fitting.

Where you’ll find hose thread

On the spout of an outdoor faucet, at both ends of a garden hose, and on washing machine valves and hoses. Outdoor faucet spouts and the far end of a hose have the male thread; the end that screws onto a faucet has the female thread.

It seals with the washer

A hose joint seals on the rubber washer inside the female end, not on the threads, so it needs no tape. When one drips, a new washer is the first fix. Screw the fitting on by hand, then snug it about a quarter turn more.

Joining a hose to something else?

Use the adapter finder

Common questions

Do 5/8 and 3/4 inch hoses have different fittings?

No. The 5/8" or 3/4" on the label is the hose's inside diameter; the ends are the same garden hose thread, so the two screw together directly.

Is garden hose thread the same as 3/4 inch pipe thread?

No. It's sold as 3/4" and is nearly the same width as 3/4" pipe thread, but it has 11.5 threads per inch to the pipe thread's 14, and it seals on a washer instead of the threads.

Keep going

Identify itany partConnect two garden hosesHose thread vs pipe threadHose leaking at the spigotGarden hose to 1/2" pipe

Where we get our information from

The sizes on this page come from published standards and the makers’ own documents. Checked against published data from Flexzilla, National Bureau of Standards, Dixon Valve, Woodford and BrassCraft.

See all 6 sources
  • National Bureau of Standards, Handbook H28 (1957) Part II: Table VII.2 (American Standard taper pipe threads, NPT) and Tables X.1–X.3 (hose coupling threads, NH)
  • Dixon Valve, Technical Information: Identifying Threads and Thread Dimensions (2009 catalog)
  • Woodford, Model 17 wall faucet catalog
  • BrassCraft, washing machine connector BL12-WA
  • Flexzilla, “How to Choose Garden Hose Diameter” and garden hose specifications
  • Flexzilla, “What Causes a Leaky Garden Hose”

General guidance from manufacturer and standards data. Parts vary by brand, so check the size printed on the package against what you measured. For gas lines or anything inside a wall, use a licensed plumber.