Lost Socks Calculator
Calculate your sock loss index using the scientific formula developed by Dr. Simon Moore
Calculate Your Sock Loss Index
👥 Laundry Habits
e.g., whites, darks, delicates, towels
🎯 Attention & Attitude
Neutral/indifferent
Checking pockets, unrolling sleeves, turning clothes right way, unrolling socks, etc.
Cost of buying a new pair when you lose one sock
Your Sock Loss Analysis
Formula used: Sock loss index = [L(p × f) + C(t × s)] - (P × A)
Monthly cost: $40.72 ($488.64 annually)
Annual sock loss: 61.08 socks
Quick Prevention Tips
Switch to white, stripy, or spotty socks
Reduce the number of socks you own
Secure socks properly on washing line
Search behind radiators and furniture
Buy only one type of sock
Research Facts
1.3 socks lost per month (average)
55% of lost socks are colored
Main cause: Absentmindedness, not machines
Study by: Dr. Simon Moore & Geoff Ellis
💡 Personalized Recommendations
🔬 The Science Behind Lost Socks
The Formula
Sock loss index = [L(p × f) + C(t × s)] - (P × A)
This formula was developed by psychologist Dr. Simon Moore and statistician Geoff Ellis after analyzing thousands of cases of lost socks.
Variables explained:
- •L: Laundry size (people × wash frequency)
- •C: Washing complexity (wash types × socks per week)
- •P: Positivity towards laundry (1-5 scale)
- •A: Attention/precautions taken
Key Research Findings
- •Average person loses 1.3 socks per month
- •Colored socks make up 55% of all lost socks
- •Main cause is absentmindedness, not washing machines
- •Socks often fall behind furniture or radiators
- •Poor securing on washing lines leads to wind loss
- •Higher laundry frequency increases loss probability
Pro Tip
Buy only one type of sock to eliminate the need for pairing and reduce the impact of losses!
🎯 Professional Sock Sorting Tips
The Radix Sort Method
Recommended by cognitive scientist Professor Brian Christian in "Algorithms to Live By":
- Separate all socks into groups by color
- Subdivide each color group by length or pattern
- Match socks within these smaller, organized piles
- This method is much more efficient than random searching
The Pigeonhole Principle
For smaller loads, use this mathematical approach:
Rule: Pick half the total socks plus one, and you're guaranteed to find at least one matching pair.
Example: With 10 socks, pick 6 and you'll definitely have one pair.