Ordering a ring can be tricky if you aren’t sure about your ring size. While a jeweler can give you the most precise measurement, it isn’t always convenient to make an appointment with one. Fortunately, you can do a pretty accurate job at home. Measure your finger with a flexible measuring tape and convert the measurement using a ring size chart or ruler. Alternatively, if you already own a great-fitting ring, the process is even easier! You can get your size by comparing your ring to a circular sizing chart.