Buy Home vs Rent Calculator
Renting vs. Buying is typicaly portrayed as a matter of morality. Like you’re somehow a bad person if you don’t buy a home. But that … Read More
JSCalc
EPA Household Carbon Footprint Calculator
Your household carbon footprint is a number from your utility bills and travel activities that the EPA household carbon footprint calculator turns into something useful. … Read More
Punnett Square Eye Color Calculator
It’s back: the great family discussion of eyes. A blue-eyed kid comes from two brown-eyed parents; now what? And that messes up family tree. Blame … Read More
Stardate Moon Phase Calculator
Two things are answered at once by this calculator on page. For the date you input, it displays Moon’s phase, how illuminated it is, and … Read More
Orbital Period Calculator
One of the oldest questions in astronomy is “how long does it take for something to go around?” That’s what my orbital period calculator above … Read More
Time Duration Calculator Hours
It’s a source of anxiety on every Friday afternoon: I don’t know how many hour I’ve worked. There are gaps in my timesheet. My mind … Read More
Business Days Between Two Dates Calculator
The common understanding of a business day is “Anyday that’s not Saturday or Sunday.” Sure, go ahead and begin there; but that fails to account … Read More
Horsepower Calculator (Engine HP from Torque and RPM)
If you’ve ever debated power output with another person who claims that torque make a vehicle move, well then you’re both correct. Depending on which … Read More
Invoice Due Date Calculator
When an invoice is dated the last week of May with Net 30 terms, it doesn’t land in late June. It arrives in mid-June: the … Read More
Break-Even Mortgage Point Calculator
The closing table typically isn’t a negotiating table. There’s always pressure to sign. It is often a race to the signature line involving pile of … Read More