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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:

Anton
Anton
Timur
Timur

Sun altitude and shadow
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 :).

PLANETCALC, Shadow length

Shadow length

 :

°

°

Digits after the decimal point: 2
Shadow length
 
Save the calculation to reuse next time, to extension embed in your website or share share with friends.

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

PLANETCALC, Daily shadow growth

Daily shadow growth

°

°

Digits after the decimal point: 2
Shadow length
Save the calculation to reuse next time, to extension embed in your website or share share with friends.

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