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DateDelta
Measure a ring that already fits well, and convert that measurement into a standard US size.
Measure the inner diameter of a ring that fits the intended finger comfortably — straight across the inside, not around the outside. A piece of string wrapped around the finger and measured for circumference works too, using the circumference-to-size relationship directly.
Fingers are typically slightly larger when warm (like at the end of the day) and smaller when cold — measure at a 'typical' temperature and time of day, and consider sizing for the more common case rather than an extreme.
Duration between two times of day, in hours and minutes.
OpenHours worked from clock-in, clock-out, and break time.
OpenWeekly total hours and overtime from daily entries.
OpenAnnual cost of your daily commute.
OpenUS ring size
7
54.3 mm circumference
What you entered
Convert diameter to circumference
17.3 × π= 54.3496 mmMatch against the standard US ring size chart
interpolate nearest chart entries= US size 6.9806Result
US ring size: 7
A 17.3 mm inner diameter (54.3 mm circumference) corresponds to a US ring size of about 7.