Distribution Calculator

A calculator that can deal with distributions ergonomically, to allow users to easily arrive at fermi estimates that incorporate uncertainty.

Tips:

■ The boxes represent the 90% confidence interval (5% to 95%) of your distributions

■ Swipe left or right to duplicate an input

Try this example estimating the number of grams lost with a month of exercise lifting:

10 to 30 kg lifted per exercise

× 0.25 to 0.75 meters lifted per exercise

× 9.81 gravitational constant, to get to Jules (swipe left at the bottom to duplicate the input)

× 10 reps per set

× 3 to 4 sets per exercise

÷ 15% 35%, wild guess on chemical to physical efficiency conversion

÷ 4, jules to calories

÷ 6K to 8K, calories burnt to lose one gram of fat

× 7 to 15 exercises in a gym session

× 2 to 4 times a week

× 4 weeks a month

÷ 10% to 30%, wild guess for share of loss that is due to the direct physical exercise

(as opposed to higher burn rate, cost of building muscles, etc.)

= ¿ to ? grams lost with the above exercise regime in a month