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Washing Cost Calculator
Total washing cost per piece — labour, chemicals, water, fuel, overhead.
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Softener Consumption & Cost Calculator
Optimize chemical utilization in garment washing recipes. Calculate total softener requirements (in kg), chemical expenditures, and water bath volumes (in L) based on liquor ratio and dosage selections. No account needed — numbers update as you type.
Chemical consumption is highly dependent on bath water ratios. Optimizing liquor ratios directly reduces both chemical usage and environmental wastewater loads.
Step By Step
How to Use This Calculator
5 steps
- Select the operating currency and enter the Fabric Load Weight in kilograms.
- Adjust the Liquor Ratio slider (representing the fabric-to-water weight ratio, e.g., 1:10).
- Select the preferred dosage method: Grams per Liter (g/L) or On Weight of Fabric (% owf).
- Input the dosage value and unit cost of the chemical per kilogram.
- Adjust the wastage buffer percentage to account for residue and handling losses.
Worked Example
Worked Example — Softener Application on Denim Batch
Use this sample to sanity-check your inputs and understand what the final result represents.
- 1Fabric load weight: 250 kg · Liquor ratio: 1:10
- 2Total water volume: 250 × 10 = 2500 Liters
- 3Dosage: 2 g/L · Chemical cost: $3.50 per kg · Wastage: 3%
- 4Softener quantity needed: (2500 × 2) ÷ 1000 = 5.0 kg
- 5Including wastage: 5.0 × 1.03 = 5.15 kg
Final Result
Exporters require 5.15 kg of softener chemical for this batch, resulting in a recipe cost of $18.03.
Methodology
Washing Chemical Formulas
This section explains the calculation logic, assumptions, and source material used to make the result more trustworthy and easier to verify.
Water Volume (L) = Fabric Load Weight (kg) × Liquor Ratio. If g/L dosage: Softener Qty (kg) = [Water Volume (L) × Dosage (g/L)] ÷ 1000. If % owf dosage: Softener Qty (kg) = Fabric Load Weight (kg) × (Dosage % ÷ 100). Total Softener Qty with Buffer = Softener Qty × (1 + Wastage % ÷ 100). Source: BGMEA Wet Processing Guidelines.
Practical Guidance
Wet processing best practices for washing plants
- 1Use low-liquor-ratio washers (e.g., 1:5 to 1:8) to reduce water volumes, energy consumption, and chemical expenditures.
- 2Calibrate chemical dosing systems regularly to prevent over-dosage and quality deviations.
- 3Verify wash water pH levels (normally 5.5 - 6.5 for cationic softeners) to ensure optimal chemical exhaust and softness.
- 4Pre-dissolve powder softeners in warm water to prevent chemical spots on finished garments.
Frequently Asked Questions
What is liquor ratio?+
Liquor ratio (L:R) represents the ratio between the dry weight of the fabric and the total volume of water used in the washing bath. A 1:10 ratio means 1 kg of fabric requires 10 L of water.
Why does dosage method affect consumption calculations?+
Grams per Liter (g/L) calculates chemical needs relative to the water volume, while On Weight of Fabric (% owf) calculates requirements based on the fabric weight.