How many pairs of underwear should I own?

How many pairs of underwear do people own?

The average person owns about 17 pairs of underwear. Women tend to own more (20+) due to variety in styles, while men average about 14 pairs. The "rule of thumb" is to have at least 14 pairs — enough for 2 weeks between laundry days.

Underwear ownership statistics

• Men average: 14 pairs
• Women average: 21 pairs
• Recommended minimum: 14 pairs (2-week supply)
• 45% of Americans have worn the same underwear 2+ days in a row
• 13% of men own underwear older than 10 years

Replacement guidelines

• Replace underwear every 6-12 months (hygiene experts)
• Elastic breakdown happens after ~100 washes
• Stained or holey underwear should be replaced immediately
• Most people wait 2-3 years before replacing

Sources: YouGov surveys, Tommy John underwear study (2019, n=2,000), clothing industry data.