Decimal degrees
Input 1
Lat / Lon
Degrees / decimal minutes
Input 1
Degrees / minutes / seconds
Input 1
Input 2
Input 2
Input 2
Result
Rounded (whole degrees)
Result
Rounded (whole degrees)
Result
Rounded (whole degrees)
Visual display
Select Lat/Lon mode and enter values to see the angle on the globe.
Decimal hours
Input 1
Hours / decimal minutes
Input 1
Hours / minutes / seconds
Input 1
Input 2
Input 2
Input 2
Result
Result
Result
Decimal hours
Greenwich time
Hours / decimal minutes
Greenwich time
Hours / minutes / seconds
Greenwich time
Longitude
Longitude
Longitude
Local time
Local time
Local time
Linear interpolation of a celestial body rise or set time between two table latitudes.
Southern table latitude
Degrees / minutes
Time
HH:MM or HH:MM:SS
Northern table latitude
Degrees / minutes
Time
HH:MM or HH:MM:SS
Own latitude
Degrees / minutes
Result
Time (HH:MM:SS)
Time (decimal minutes)
Calculation steps
Complete the inputs to see the calculation steps.