Omni Calculator

Lost Socks Calculator

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You may access this calculator on the Omni site here: or use it here on

How many times have you unloaded the laundry, only to realize that one of your socks is missing? We've all been there; this problem has been affecting millions ever since socks were invented by the ancient Greeks back in the 8th century BC. While we still don't have a perfect solution to this particular problem, we have something even better: the Sock Loss Index calculator. Use it to find out how many socks go missing in your household per month, and how much money you spend on replacing them.

A foolproof sock loss equation
As you might expect, you're not the only person who's fed up with socks disappearing mysteriously from the washing machine when you're not looking. The issue got so much attention that a special study on the Mystery of The Missing Sock was commissioned to investigate the scale of the problem

Psychologist Dr. Simon Moore of Innovationbubble, a behavioral strategy agency, and statistician Geoff Ellis at Evolution met together to analyze thousands of cases of lost socks and came up with a foolproof formula:
Sock loss index = [L(p f) + C(t s)] - (P * A)
L stands for laundry size, calculated as the number of people in the household, p, multiplied by the frequency of washes over a week, f;
C represents washing complexity, and is found by multiplying how many types of wash, t, your household does in a week, by the number of socks, s, washed in a week;
P is your positivity towards doing laundry, measured on a scale from 1 to 5; and A stands for the degree of attention - that is, the number of precautions taken before doing the laundry. Precautions might include checking pockets, unrolling sleeves, turning clothes the right way, and unrolling socks.

We went a step further to find out how much money you lose on replacing all these missing socks - feel free to check it out in the advanced mode of our Sock Loss Index calculator. We assumed that for each sock lost, you buy a new pair. (What happens to the single sock? We recommend making a sock bun).

Where do all the missing socks go?
Even though most people suspect that faeries, the machine god, or hungry alligators are on the hunt for their socks, scientists have found an answer to this question as well. (They love spoiling the fun of the guessing game, don't they?) Apparently, the culprit is hiding in plain sight: it's your washing machine.
It's true: your washing machine is perfectly capable of devouring socks from time to time. You can find them in most surprising places if you disassemble the device; they might end up between the inner and outer drum, in the drainpipe, or behind the agitator.
Nevertheless, the study discovered that the average Brit loses an astounding 1.3 socks every month, which translates to 15 socks a year. Now, imagine a family of four that has a five-year-old washing machine. Unless their machine is actually a giant cloth moth in disguise, it's not physically possible to fit 300 single socks in its insides.
That leads us to a surprising conclusion: the main criminal, it turns out, is... you. Or, to be more precise, you and all the other people living in your household.

How to decrease your Sock Loss Index?
There are many common-sense ways to reduce the loss of socks; of course, we are SocksPLus1 would like you to buy a pair of socks from us and add a third sock. Improve your odds of sock retention by one third!

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