Hertz means cycles per second. The time period T = 1 / f or the frequency f = 1 / T. You can find formulas down in the related links for conversion and calculation: Time period, cycle
http://wiki.answers.com/Q/What_is_formula_for_calc...

Hertz is cycles per second. If you have the wave length (peak to peak or trough to trough) then you just measure the time between peaks in seconds (t) Hertz (H) H = 1/t. That's it
http://answers.yahoo.com/question/index?qid=200805...

1. Open the Energy Converter in any web browser using the link in Resources. 2. Set the unit "Hz" (hertz) in the column "Frequency. 3. Enter the frequency value: "
http://www.ehow.com/how_7426215_calculatehertzjo...

The formula for BMI for adults is BMI = (weight in pounds) multiplied by 703 divided by (height in inches) squared. For instance if you're 5ft 9 inches and weigh 180 lbs, your BMI
http://answers.ask.com/Fitness_and_Nutrition/Nutri...
