Profit Margin Calculator: Margin, Markup & Selling Price
If you’re selling something, you probably have an idea of how much it costs you to make your product. How many hours of work does … Read More
JSCalc
Correlation Matrix Calculator: Pearson r for 3-5 Variables
Start with a few (three or five) variables whose relationships you suspect but don’t see directly. Your intuition is shown as a matrix of numbers … Read More
Pearson Correlation Significance Calculator + Critical r
People fail to recognize that if they gets a correlation coefficient of 0.5, there must be a strong relationship between those two variable. Not so … Read More
Scatter Plot Correlation Coefficient Calculator (Pearson r)
Do you have some sort of data? You has two columns of numbers that you suspect is related somehow, but when you look at them, … Read More
Correlation Coefficient P Value Calculator (r and n)
Take your correlation coefficient, which shows a correlation of 0.5 between two variables. That’s pretty impressive, unless you consider it came from a mere sample … Read More
Angle to Degrees Converter (Radians, Gradians, DMS, Mils)
There are angles all around and they’re not always easy to work with. If you want to measure a piece of pie, you intuitively know … Read More
Electrical Energy Converter: kWh, Wh, J, MJ, BTU, Therm
When you look at your electric bill, it’s just some arbitery number on a piece of paper; until you try to calculate it yourself. Then … Read More
Power Energy Converter: Watts, kW, hp, kWh, Joules & BTU
If you’ve ever looked at your electric bill, I’m sure you’ve noticed the numbers there and pondered their relationship to devices in your home. Despite … Read More
Wave Energy Converter Types: WEC Power by Device
Using the power of the ocean has always been hard; its rawness is something that we’ve long treated as easy to ignore. But it’s not: … Read More
Force to Pressure Converter (P = F / A) With Units
Consider this: If you press your thumb onto a balloon, you can put your thumb gently on the surface with no problem. Press slightly harder … Read More