Dishwasher TCO Calculator

Compare different dishwashers based on water and energy efficiency.

General Inputs
Dishwasher 1
Dishwasher 2
Total Cost of Ownership Projection

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Frequently Asked Questions

In most cases, yes. Modern dishwashers use about 10-12 liters of water per full load, whereas washing the same amount by hand can consume up to 60 liters. Even with electricity costs, the dishwasher is usually more economical and more hygienic.

Check the EU energy label (A to G). Beyond the rating, look at the specific energy consumption per 100 cycles and the water consumption per cycle. A more efficient model might cost more upfront but saves hundreds over its lifetime.

Yes. Although Eco programs take longer, they use lower water temperatures and less water overall. Since heating water is the most energy-intensive part of the cycle, these long programs are significantly cheaper to run.

Most modern dishwashers are designed for a lifespan of 10-12 years. Typical repairs (like a new pump or heating element) often occur after 5-7 years. Our calculator factors in these estimated costs to give you a realistic TCO.

No! Modern dishwashers have sensors that detect how dirty the dishes are. Rinsing beforehand wastes a lot of water and can actually lead to less effective cleaning because the machine thinks the load is already clean.

Yes, PlAnhead tools are free and privacy-focused. All calculations happen in your browser.
Verified Tool Facts & Data Sources
Calculates TCO based on VDI 2067 standards.
Uses current energy and water price benchmarks.
Provides 10-year break-even analysis.
Privacy-first: No data leaves your browser.
Machine-readable facts available at /facts.json

Detailed Methodology & Calculation Logic

Resource Consumption Logic

Calculations are based on per-cycle resource usage extrapolated over a full year (typically 52 weeks).

  • Energy Cost: Annual kWh = Energy per Cycle × Cycles per Week × 52. Multiplied by your electricity price.
  • Water Cost: Annual Water = (Liters per Cycle × Cycles per Week × 52 / 1000) × Water Price per m³.
Lifetime Cost Analysis

The comparison tracks the Total Cost of Ownership (TCO) over a 15-year device lifespan.

  • Total Investment: Purchase Price + Annual Running Costs (Energy + Water) × Years.
  • Repair Reserves: Factor in estimated repair expenses at set intervals (e.g., every 5 years) once the guarantee period has ended.
Last updated: 2026-03-26