Cloth vs Disposable Diaper Cost Calculator
Enter diaper use, cloth purchase costs, and laundry assumptions to compare lifetime cost. The calculator estimates savings, laundry cost per load, water and electricity use, and the break-even month.
Projected savings with cloth$1,043.64
- Disposable diaper cost
- $1,917.52
- Cloth diaper cost
- $873.88
- Cloth break-even time
- 11 months
- Laundry cost per diaper load
- $1.17
- Estimated diaper laundry loads
- 355.1
- Projected laundry water use
- 9,942.71
- Projected laundry electricity use
- 994.27
Cost breakdown
| Item | Amount |
|---|---|
| Cloth diapers purchased | $432.00 |
| Other upfront cloth costs | $100.00 |
| Diaper laundry | $416.88 |
| Expected resale credit | -$75.00 |
| Disposable diaper comparison | $1,917.52 |
Final partial laundry loads are represented fractionally instead of rounded up.
Break-even uses upfront cloth purchases before any later resale value.
How to use this calculator
- Enter how long the comparison should run and the average diaper changes per day.
- Add the disposable price per diaper and the cloth diapers, accessories, and resale value you expect.
- Enter the washer, dryer, detergent, electricity, and water rates used for diaper laundry.
- Compare the total costs, break-even month, and laundry resource use before deciding which estimate fits your household.
How the diaper cost comparison is calculated
This calculator compares the diaper purchases you would make with disposable diapers against the upfront and operating costs of cloth diapering. It treats diaper changes as an average across the full period, so a newborn month with more changes and a toddler month with fewer changes can be represented by one blended daily number.
The total number of diaper changes is:
N = 365.2425 / 12 x months x diapers per day
Disposable cost is then N x disposable cost per diaper. Cloth cost starts with the diapers and accessories you buy, adds diaper laundry, and subtracts the resale value you expect at the end:
cloth cost = diaper count x cloth price + other upfront cost + laundry loads x laundry cost per load - resale value
Laundry loads are fractional: loads = N / diapers per wash load. That keeps a final partial load from creating a jump in the estimate.
How laundry cost is built
The laundry cost per load is based on washer cycles, electricity, water and sewer, dryer use, and detergent:
q = cycles x (washer kWh x electricity rate + washer gallons x water rate / 1000) + dryer share x dryer kWh x electricity rate + detergent
If water or electricity is included in rent, enter the marginal rate you actually pay, which may be zero. Enter zero dryer kWh or a zero dryer-use percentage when you line dry all diaper loads.
What moves the answer most
The biggest drivers are the disposable price per diaper, the cloth diaper purchase price, the number of months used, and whether the same cloth diapers are reused or resold. Laundry matters too, especially with high water and sewer rates, multiple wash cycles, or frequent machine drying. A high resale value can make cloth look cheaper, but only if that resale is realistic for the condition and market.
What this calculator leaves out
The estimate does not value laundry time, convenience, storage space, or differences in fit and preference. It does not add replacement diapers, repairs, specialty creams, disposable liners, stripping, sanitizing, or extra washing outside the amounts you enter. It also does not give laundering or hygiene guidance; it only accounts for household budgeting costs.
Worked example
Suppose diapering lasts 30 months with 7 changes per day and disposable diapers cost $0.30 each. That is about 6,391.74 diaper changes, so disposable diapers cost about $1,917.52.
For cloth, suppose you buy 24 diapers at $18 each, spend $100 on accessories, and expect $75 of resale value. Washing 18 diapers per load with two washer cycles, 0.15 kWh and 14 gallons per cycle, a 2.5 kWh dryer load, $0.18 per kWh electricity, $15 per 1,000 gallons water and sewer, and $0.25 detergent gives a laundry cost of about $1.17 per load. Across about 355.10 loads, cloth costs about $873.88 after resale.
In that example, cloth saves about $1,043.64. The upfront cloth cost is $532, and the monthly disposable cost avoided after laundry is about $50.02, so the break-even time is about 10.6 months.
Common questions
How many cloth diapers are needed for a workable rotation?
Many households use roughly 20 to 30 cloth diapers for one child, but the right number depends on age, washing frequency, drying time, and whether daycare or travel changes the routine. Enter the actual number you expect to buy, including backups.
How do I find my washer's electricity and water use?
Use the EnergyGuide label, the manufacturer specifications, or a measured estimate if you have one. Enter consumption per washer cycle, then count prewash, main wash, and extra rinse cycles separately.
Should a prewash and main wash count as two cycles?
Yes. The calculator applies washer electricity and water to each cycle. If your diaper routine uses a prewash, a main wash, and an extra rinse, enter three cycles per diaper load.
How much does line drying change the break-even point?
Line drying reduces or removes the dryer electricity part of each laundry load. The effect is larger when the dryer uses a lot of kWh per load or electricity rates are high.
Can cloth diapers be cheaper if they are bought used?
Yes. Used cloth diapers lower the upfront cost, which usually shortens the break-even time. Enter the average used price you actually pay and use a conservative resale value if condition may be lower after your use.
How should resale value or reuse for another child be handled?
Enter expected resale value if you plan to sell the diapers after this period. If you plan to reuse the same diapers for another child, you can either extend the months of use or treat the remaining value as a resale-style credit for this comparison.