Decimal to Fraction Calculator: Exact & Repeating
Here you are, standing in home improvement aisle with a length of lumber in hand. You want it cut exactly to size. The design involve … Read More
JSCalc
Infant Weight Percentile Calculator (WHO & CDC LMS)
You look down at the number, then close the scale. Did it mean you’ve been keeping your baby alive? Or was it a sign of … Read More
Probability Calculator: Events, Combinations & Permutations
Imagine I give you a coin and ask you to hold it in your hand. You know it will land heads or tails, but you … Read More
Z Score Calculator: z, Percentile & Normal Probability
Take a standardized test and score an eighty-five. You may be feeling decent about yourself until you see that the class average was seventy, with … Read More
Junior High GPA Calculator: Middle School 4.0 Grades
When most middle schoolers view their report card, they notice the letters (or colors); they don’t recognize the underlying mathematical equation behind those grades. If … Read More
Military Retirement Calculator: High-3 vs BRS Pension
Military retirement is unlike civilian retirement. It doesn’t involve building up slowly over four decades with the hope that market cooperate. Rather than build wealth … Read More
FERS Retirement Calculator: Federal Pension Estimate
There are some mysteries regarding federal retirement planning. It is your salary history. You has years of service. How do you take those numbers and … Read More
Waist to Height Ratio Calculator (WHtR) With Ashwell Chart
If you’ve ever used a waist tape, it usualy sits in a drawer. You might take it out to see if a pair of pants … Read More
Axle Ratio Calculator: Gear Ratio, RPM & Tire Size
You get on the highway, set cruise, and pull out. Everything sounds great as you motor down the road; then you realize engine isn’t humming … Read More
Property Tax Calculator: Mill Rate & Exemptions
The four hundred thousand dollar house (that’s the big ticket). You’ve celebrated milestone of buying your house, but then you look up and suddenly realize … Read More