Pets

How many days will my pet pads last?

Use pad stock, daily changes per pet, spare allowance, shipping, and safety days to estimate depletion and a safe reorder date.

Formula version 2.0.0 · Last reviewed 2026-08-30

Preparing the calculator.

Calculator inputs and results

Pet pads

Uses pads on hand and pads changed per day.

Add extra travel use in the travel planner.

Cost, delivery and allowance

Estimate

about 25 daysremaining

about 25 days
Estimated run-out
Safe order date
Monthly need
121.75 pads
Monthly consumption cost
₩23,133
Actual annual purchase cost
₩285,000

Formula and assumptions

This is an inventory baseline assuming average changes continue. Compare a higher-use range for travel, training, or illness.

Add daily pad changes across pets and apply waste or spare allowance. Divide stock by daily use, then move the order date earlier by shipping and safety days.

Why the result can vary

Pad size, absorbency, placement count, time away, and health can change replacement frequency.

Example

Check the next pack order date

Inputs: 100 pads, 4 per day, 3 shipping days, 2 safety days

Outcome: About 25 days of stock, with an order date five days before expected depletion.

Cautions

  • This calculator is not a reason to reduce changes needed for hygiene or health.
  • Increase safety days when delivery timing is uncertain.

Frequently asked questions

What if each pet uses a different number of pads?

Enter each pet's average daily changes separately or use their combined household total.

Can large and small pads share one calculation?

If one pad does not represent the same replacement, save them as separate items.

Can I include extra pads for travel?

Yes. Use the travel-supplies view with trip days and a safety allowance to calculate the pad item separately.