Area of a circle Calculator

Calculates the area and circumference of a circle given the radius or diameter.

Area of a circle

area S
    1.  
circumference L
    1.  
    Area of a circle
    [1-10] /11Disp-Num
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    [1]  2019/04/12 05:28   Female / Under 20 years old / Elementary school/ Junior high-school student / A little /
    Purpose of use
    help with a question
    [2]  2018/11/17 11:26   Male / 20 years old level / Elementary school/ Junior high-school student / Very /
    Purpose of use
    To expose me more understanding
    Comment/Request
    nice
    [3]  2018/07/23 03:43   Male / 60 years old level or over / An engineer / Very /
    Purpose of use
    CEU''s re-newing my certification
    Comment/Request
    It''s great because I don''t have to do the laborious math long hand in a note book! Where was this when I was in college? Oh, that''s right the internet, apps and calculators weren''t invented then, just the old trusty slide rule.
    [4]  2017/06/15 17:28   - / 20 years old level / An engineer / Useful /
    Purpose of use
    To be able to ease my work of calculation
    [5]  2014/03/29 09:13   Male / 60 years old level or over / An engineer / Very /
    Purpose of use
    verify manual calculations involved in modifing a automotive combustion engine using different varribles for optimum horsepower to torque at given RPM
    [6]  2013/02/18 14:53   Male / 60 years old level or over / Self-employed people / Very /
    Purpose of use
    Determine area of different diameter pizzas to calculate best buy for price!
    Comment/Request
    Thank you !
    [7]  2012/11/30 17:24   Male / Under 20 years old / High-school/ University/ Grad student / Very /
    Purpose of use
    assignments especially in physics
    Comment/Request
    great page,, very useful..
    [8]  2012/11/16 13:39   Male / 20 years old level / A teacher / A researcher / Very /
    Purpose of use
    for exam
    Comment/Request
    for college level only
    [9]  2011/09/29 11:22   Male / 40 years old level / Self-employed people / Very /
    Purpose of use
    OFFICE TASK
    Comment/Request
    AMAZING
    [10]  2009/11/04 21:08   Male / 20 level / An office worker / Very /
    Purpose of use
    office task
    Comment/Request
    good

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