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
JSCalc
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
Height Percentile Calculator for Adults and Children
For example, being shorter then everyone standing beside you might cause you to realize how tall (or short) you are. This is true in social … Read More
Ohms Law Calculator: Voltage, Current, Resistance, Power
Ohm’s Law is an equation that explains how electricity works by defining relationship between power, current, resistance and voltage. While it may be an abstract … Read More