Coronavirus Mask Calculator

Your details

Cloth masks are reusable and just need washing. Disposable masks (surgical, KN95, N95, N99) must be replaced after the wear-time limit.
Average hours per day you actually wear the mask (not just carry it).
h
How many days to stock up for - 7 for a week, 30 for a month, 90 for a quarter.
days
Number of people in your household who will all use this mask type.
people
Cost per individual mask. For cloth masks, enter the price of one mask (amortised over many washes).
USD
Extra masks on top of the calculated need, as a safety cushion.
Total masks neededWell stocked
132

Masks needed for your whole household over the full planning period, including buffer.

Masks per person per day2
Rotation set (cloth only)0
Total cost39.6USD
Cost per person per day0.66USD
Masks without buffer120
Base need120
With buffer132

You need 132 surgical masks for 2 people over 30 days.

  • At this usage rate you will go through about 2.0 surgical masks per person per day.
  • Total cost is about $39.60 for 2 people over 30 days.
  • That works out to roughly $0.660 per person per day.

Next stepStore sealed disposable masks away from humidity and direct sunlight. Do not reuse a mask past its wear-time limit even if it looks intact.

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