Countdown to Pregnancy Calculator: Ovulation & Fertile Days
Ovulation sounds like a point in time. It feels like there is a single moment when an egg is released, and then you either have … Read More
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Retirement Date Countdown Calculator: Years, Days Left
If you’re reading this, chances are good that you aren’t counting down to retirement in years. You’re counting it down in paychecks. And while they … Read More
Split Bill Calculator With Tax and Tip Per Person
That’s right, it’s time for check to arrive and no one knows how to do math. You’ve had a good dinner with some friends. But … Read More
Sleep Time Cycle Calculator: Best Bedtimes & Wake Times
You might think it’s all about the number of hours you slept. It isn’t always. It’s about which part of the sleep cycle you woke … Read More
Dice Pool Probability Calculator (Success Counting)
It’s the moment we all know: Your character has found himself looking down at a dragon and the music cuts out. Six ten-sided dice sits … Read More
Three Dice Probability Calculator: 3d6 Sum Odds
Three six-sided dice are just a number generator, right? That’s how you use them, but what they do is follow a statistical distribution that’s not … Read More
Two Dice Probability Calculator: 2d6 Sum Odds & Grid
In gaming, there’s a familiar sound: the clatter of two dice bouncing off each other onto felt table. It mean luck is turning or changing, … Read More
6 Sided Dice Probability Calculator (d6 Odds & Sums)
When you roll a die, the result seems arbitrary. But there is an underlying math that dictates its outcome. For hundreds of years, mathematicians have … Read More
Dice Probability Calculator With Rerolls and Thresholds
Dice rattle quietly in a silent room, and you sit on the other side of the table. You make a quick check to spot the … Read More
Win Loss Rate Calculator: Win %, W/L Ratio, Projection
You lost twenty games. Thirty won. And you realize that you’re winning more than you’re losing. But the brain doesn’t like it when there’s more … Read More