Depending on your goals, you might need different sizes of dilators. On this page, we identify the length, width, and circumference of each dilator (in inches). Generally, the process of using dilators is to start with a size you can easily accommodate and slowly work your way up to larger sizes.
If you’re trying to accommodate tampons or medical exams, you’ll most likely want to start with the Small 4-Pack or Full 8-Piece Dilator Set. If you’re trying to accommodate your partner for intercourse, try using a measuring tape to measure the length, width, and circumference you’d like to support. Be sure to start a few sizes below where you want to end up, because you will need to slowly work up to supporting that size.
Another method to figuring out which size you need is to use the finger test. If you can NOT fit 0 or 1 finger into your vaginal or rectal opening without pain or bleeding, then you will want to start with the first set (Small Dilator 4-pack, sizes 1-4). If you can fit 1 or 2 fingers in, then you will want the medium dilator set (Medium Dilator 4-pack, sizes 3-6), and if you can easily fit 2 fingers, but not 3, without pain, then you will want to purchase the large dilator set (Large Dilator 4-pack, sizes 4-8).
Many people like to purchase the full 8-piece dilator set because it’s the best value and it allows for the maximum range of sizes.