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Shadow length

Gives a vertical object shadow length for given coordinates and time. Also calculates shadow growth during whole day.

This page exists due to the efforts of the following people:

Sun altitude and shadow

This simple online calculator gives a vertical object shadow length for specified day and geographic coordinate. The calculator uses Sun position algorithm to calculate sun altitude.
Then it uses this formula to calculate shadow length:

L=h/tan({\alpha}),

where

h - object height,
a - angle between Sun and horizon.

The calcultor gives zero result if there is no shadow. As you know, this may happen at night time :).

Created on PLANETCALC

Shadow length

 :

°

°

Digits after the decimal point: 2
Shadow length
 

You may also clculate the shadow growth during the whole day using the calculator below:

Created on PLANETCALC

Daily shadow growth

°

°

Digits after the decimal point: 2
Shadow length

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