FitnessMath.com Logo  
        Home // Unit Convertor | CoolFitnessGifts.com

More ...

Age/Time
Stopwatch

Distance
Mass/Weight
Power
Size
Speed

Running Treadmill


Walking Treadmill

Pace Calcs


Temperature

 

--------------
Simple Math

 
 
 
Circumference of a Circle

FitnessMath.com is a fun site for learning about math that you can use for fitness, workouts and health promotion.

Google's calculator works for circumference of a circle,
which is 2 * Pi * radius
(circumference also equals Pi * diameter).

spacer

 


What is the circumference of a circle given the radius of the circle?
In the expression below replace the '3' with the length of your circle's radius:

If you type in the unit, such as feet or meters (in parentheses with the number), Google gives the answer in meters.



What is the circumference of a circle given the diameter of the circle?
In the expression below replace the '6' with the length of your circle's diameter:

Pi is a mathematical constant that is an irrational real number, which approximately equals 3.1415. Pi is the ratio of a circle's circumference to its diameter. Pi is also known as Archimedes' Constant -- not to be confused with Archimedes' Number.

Pi = circumference/diameter

See also Pi on Wikipedia

See also Math.com

 

-------------------------

*Some calculations may not be appropriate for certain individuals. This site is intended for use as an educational tool, not a clinical tool. Always check with your physician before starting an exercise program.

FitnessMath.com © Copyright 2006-2007 Apriori, Inc. AA-ER.com
 
 

HELPFUL LINKS

Google

 


CoolFitnessGifts.com
Buy fitness equipment!

Dumbbells, Barbells,
Weight Plates, BOSU
Physioballs, Swiss Balls,
Baseballs, Basketballs,
Golf Balls, Tennis Balls,
Xertube, Thera-Band
Health Club Step
Exercise Slide
Foam Rollers
Jump Ropes, PlateMate,
Triceps Bars, Triceps Rope,
Ankle Weights, Wrist Weights,
Grip Strength/Grippers
Polar Heart Rate,
Heart Rate Monitoring,
Blood Pressure Monitors,
Body Composition Products,
Weight Scales,
Bioimpedance/Body Fat %, Nutritional Supplements,
Protein Bars,
Fitness Books,
Apple iPods, and more ...

 
  Digital-Lifestyle.com     CoolFitnessGifts.com GoodWorkoutNow.com  
Exercise-Reports.com