What this calculator does
Degrees, minutes, seconds ↔ decimal degrees works out converts a geographic coordinate between decimal degrees and degrees-minutes-seconds format. Enter your own figures above and the answer updates as you type: nothing is fixed in the code, so the result reflects exactly the numbers you supply.
The formula this calculator evaluates is printed under the tool and explained below, so you can check the working by hand or reuse it in a spreadsheet.
The formula
The inputs explained
| Field | What to enter |
|---|---|
| Direction | Choose from Decimal degrees → D° M′ S″, D° M′ S″ → decimal degrees. |
| Decimal degrees | A number. Starts at 40.7128. |
| Degrees | A number. Starts at 40. |
| Minutes | A number. Starts at 42. |
| Seconds | A number. Starts at 46.08. |
Worked examples
Every figure in the tables below is produced by this page’s own calculator at build time, so the numbers and the tool always agree. Select any row to load that scenario.
How the answer changes with decimal degrees
Every other input is held at the calculator’s starting values while decimal degrees varies. Select any row to load that scenario into the calculator.