Conversion

Convert angles between degrees, radians, gradians, turns, and DMS notation with separate arc-minute and arc-second fields.

Convert years to decades or decades to years, with decimal rounding and a plain-English breakdown of whole decades and leftover years.

Convert an event’s date and local time between named time zones, including daylight-saving changes and previous or next days.

Convert time units fast and choose how months and years are treated so your answer matches the rule you need.

Convert minutes to decimal hours and hours:minutes, or convert decimal hours back to total minutes.

Convert 12-hour AM/PM times and military time. Get noon, midnight, leading zeros, and HH:MM entries right.

Convert Unix timestamps to UTC, local time, and ISO 8601, or turn a date, time, and UTC offset into Unix time.

Convert RGB values from 0 to 255 into a six-digit HEX color code, then optionally check its text contrast against a background.

Convert MB to GB using 1,000 MB per GB. Switch to the separate MiB to GiB conversion when your source uses binary units.

Convert Mbps to Gbps and compare the matching theoretical MB/s download rate. Avoid confusing bits with bytes.