27 August 2026 · 3 min read · Wildmoon studio
How to measure your ring size at home
Moonkeep fizzers come in US sizes 6 to 10. A strip of paper and a ruler is all you need to find yours.

Our Moonkeep fizzers, candles and soaps hide sterling silver rings in US sizes 6 to 10, the numeric system most ring makers outside the UK and Australia use. If you know your size in the Australian letter system, a jeweller's conversion chart will translate it.
The paper method
- Cut a strip of paper about 1 cm wide and 10 cm long.
- Wrap it around the base of the finger you want to wear the ring on, snug but not tight.
- Mark where the paper overlaps, then lay it flat and measure to the mark in millimetres.
- Enter that circumference into our ring size finder on the Moonkeep page.
Getting it right
Measure at the end of the day, when fingers are a little larger, and not when your hands are cold. If you fall between two sizes, choose the larger one; a ring that slides over the knuckle is better than one that will not.