Savings & Impact Simulator for Reusable Diapers

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Aide & Subvention Couches Lavables
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Understanding the real savings and environmental impact of reusable nappies

This unique simulator in France , Ma Boule De Couches®, calculates in seconds your actual savings by using cloth diapers, as well as the environmental impact associated with your choice. The estimates are based on average spending on disposable diapers, the duration of use for your baby, and family habits.

The calculation takes into account your personal situation: frequency of currency exchange, number of children, initial investment , and maintenance method. You receive a clear and personalized projection of the total cost of both systems.

Beyond the financial aspect, this simulator also measures the environmental impact : the amount of waste avoided, resources saved, and the potential reduction in your family's footprint. It's a concrete way to visualize the real difference cloth diapers make to your household.

Unlike the theoretical estimates often found online, this tool offers a personalized analysis that reflects your lifestyle. It provides a practical and transparent resource to guide your choice of cloth diapers.

A free interactive tool to estimate your real savings comparing cloth and disposable diapers.

Savings Simulator

Verified data: ADEME 2025 · Updated assumptions by Ma Boule de Couches®

Compare the real cost, durability and health impact of Berceau cloth diapers versus disposable diapers.
This simulator estimates your expenses over three years and shows when cloth becomes cost-effective.

Based on 2025 Ma Boule de Couches® pricing and ADEME data.

Calculation method
  • Reference duration: 3 years.
  • Estimated lifespan: 400 washes.
  • Reuse: 80% of the kit for a second child.
  • Berceau diapers: €32 · Inserts: €14.
  • Disposable diapers: €0.27/each (~6000 changes).
Health & wellbeing
  • No chlorine, fragrance or petrochemical SAP.
  • OEKO-TEX® Class 1 certified.
  • Natural breathability.

📄 Source: ADEME Study 2025 – Environmental and cost analysis of baby diapers

Discover the Berceau diaper

🌍 Environmental impact

A child in disposable diapers uses around 6 million liters of water between birth and age 3.

This water becomes polluted and is never reusable.

In contrast, cloth diapers use renewable water, treated through household wastewater systems.

You also reduce more than 900 kg of waste and avoid cutting down 1 to 2 trees per child.

Understanding your cloth diaper comparison

The table generated by our simulator compares, line by line, the real cost of using cloth diapers versus disposable diapers over a three-year period. This cloth diaper comparison highlights potential savings as well as environmental impacts related to water, energy, and raw material consumption.

Each row details the main cost items: the initial Berceau® cloth diaper kit, washing costs (short and long cycles), and the total accumulated over three years. On the disposable side, the average price of €0.27 per unit — based on ADEME 2025 — is applied to roughly 6,000 diaper changes per child.

At a glance, you visualise the budget difference: cloth diapers become cost-effective within the first months of use, and savings increase even more if reused for a second child. In nurseries, the impact is even clearer: shared washing reduces energy expenditure and waste output.

Finding the right balance between washing, budget and durability

Washing every day might seem, at first glance, like the most economical solution: fewer diapers to buy, less stock, and a fast rotation. However, this approach is less sustainable in the long run. Daily washing stresses fibres, elastics and PUL more heavily, shortening their lifespan and limiting reuse for future children.

The most balanced rhythm is a wash every 2 to 3 days. Diapers dry properly, elastics retain their flexibility, and energy costs remain reasonable. It is the best compromise between savings, ease of use and long-term durability.

Conversely, owning a larger stock to wash only once per week requires a higher upfront investment. But if planning to use these diapers for multiple children, this option becomes highly cost-effective: a well-maintained cloth diaper can serve 2 or even 3 babies, reducing both environmental impact and overall cost.

The real cost of disposable diapers

Over three years, one child in disposable diapers produces nearly one tonne of unrecyclable waste, roughly 5,000 discarded diapers. This waste is typically incinerated or landfilled, generating significant environmental and financial costs.

More and more municipalities apply pay-as-you-throw charges. In these areas, every kilogram of disposable diapers increases household waste bills. Choosing cloth diapers therefore reduces both long-term waste and expenses.

Beyond financial savings, switching to cloth is a meaningful ecological action: it limits pollution linked to cellulose, petrochemicals and plastics in disposables, while supporting a more circular and responsible consumption model.

Financial support to help families switch to cloth

Many local authorities now offer a subsidy for purchasing cloth diapers, up to €200. Check our interactive subsidy map to find available support near you.

To go further, try our cloth diaper quantity calculator — it complements the simulator by helping you determine the ideal stock based on your washing rhythm and budget.

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Designed by parents, for parents

Ma Boule De Couches®, a specialist in eco-friendly washable baby diapers , supports families from discovery to mastery.

Individualized support, responsive after-sales service and products guaranteed for 2 years for a lasting change, without compromising on quality.

Complete cloth diaper guide – Ma Boule De Couches®

Discover the complete cloth diaper guide

Learn everything about TE2 systems, effective wash routines and real long-term savings. A clear, certified and illustrated guide created by Ma Boule De Couches® to support families and childcare structures.

Open the full guide