If you brush your teeth twice a day, every single day (and we hope you do), you're bound to go through toothpaste faster than you'd think—especially in a household. This calculator is here to help you estimate how long your toothpaste will last and how much it costs you per month or week.
To get your result, you'll need to enter the following values:
- Toothpaste capacity: This is the volume of the tube, usually written on the packaging in milliliters (ml) or fluid ounces (fl oz). It represents how much paste you get in one purchase.
- Wastage: No matter how carefully you squeeze, there’s always a bit of paste that refuses to come out. This value estimates what percentage of the toothpaste is wasted and not used.
- Pea-sizes of toothpaste per wash: A single brushing session should use a pea-sized amount—about 0.25 ml. Some people use more, so feel free to adjust based on your typical amount.
- Daily brushes per person: How many times each person brushes per day. Most people brush once or twice daily.
- People in the household: Enter how many people use the same tube of toothpaste. This helps estimate how quickly the tube will be consumed.
- Durability unit: Choose how you want to view the result—whether in months, weeks, or days.
- Toothpaste price: The cost of one tube. This allows the calculator to figure out your total and per-time-period costs.
Once you enter these details, the calculator will tell you:
- How long the toothpaste will last based on your inputs.
- How much you're spending on toothpaste per selected time unit (e.g., per month).
- Use this tool to plan your household purchases better, reduce unexpected runs to the store, or even compare different brands and sizes more effectively.