Laundry detergent calculator

How Much Laundry Detergent Should You Use?

The right amount varies by detergent concentration, load size, water conditions, and product. Use the amount on your product label first.

Enter the labeled dose per load to see how many loads are left and how long your bottle will last.

How long will your detergent last?

Use your product label for the per-load amount instead of assuming one dose fits every detergent.

Use the dose printed on your detergent label for your usual load.

loads / week
Your estimate

Loads left
Estimated monthly use
Restock timing

How Much Detergent Per Load?

There is no reliable universal fl oz amount for every detergent. Enter the labeled amount for your product and usual load in the calculator.

How Many Loads Will a Bottle Last?

Divide the detergent left by the amount used per load. The calculator reports full loads so the result does not imply one more complete wash than the bottle can provide.

How Long Will Your Detergent Last?

Your weekly laundry frequency turns the number of loads left into calendar days and an estimated run-out date.

Laundry Detergent Questions

Should I follow the calculator or the product label?

Follow the product label when it gives a specific amount. Calculator presets are editable planning estimates.

Does the run-out date include a partial final use?

The date is an estimate based on the mathematical amount left, while the use count reports full uses.

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