How much detergent should I use?
Calculate the correct detergent dosage based on load size, soil level and water hardness.
The right dose saves product and is gentler on clothes. Load size, soil level and water hardness matter most.
How the calculation works
- Enter the laundry weight.
- Choose the soil level.
- Choose the water hardness.
- Calculate the recommended dose.
This is an estimate. For a specific product, follow the dosing instructions on its packaging.
Calculator
Enter the laundry weight, soil level and water hardness.
Example: For 5 kg of normally soiled laundry with medium water hardness, approximately 60 ml is recommended.
Pro tips
- Use more detergent in hard water to prevent limescale buildup.
- Overdosing is not harmful but wastes product – dose accurately.
Frequently Asked Questions
How much detergent do I need for a normal load?
The right amount depends on the load size, water hardness and how dirty the laundry is. A detergent dosage calculator helps you work out the exact amount.
How does water hardness affect dosage?
Hard water reduces detergent effectiveness, so harder water usually needs a somewhat higher dose.
Can I use more detergent for heavily soiled laundry?
Yes, heavier soiling usually increases the detergent needed. A detergent dosage calculator accounts for exactly this kind of difference.
Why is overdosing a problem?
Overdosing can leave residue, actually reduce cleaning effectiveness, and burden the environment. Getting the dosage right matters for all three reasons.
How do I check if my dosage is correct?
If the laundry comes out clean with no residue, the dosage was about right. A detergent dosage calculator helps you get it right from the start.