Nairobi Water Bill Calculator 2026

Calculate your NCWSC water bill with official tariff rates. Water consumption + 75% sewerage charges.

Enter your water consumption in cubic meters (m³) to calculate your Nairobi water bill.

10 m³ 20 m³ 30 m³ 50 m³ 100 m³
1 m³ = 1,000 liters ≈ 10 baths or 15 showers
Please enter a valid water consumption amount.
💧 About NCWSC Tariffs

Nairobi City Water & Sewerage Company uses progressive billing:

  • 0-6 m³: KES 45 per m³ (Water), KES 43 (Sewerage)
  • 7-20 m³: KES 67 per m³ (Water), KES 56 (Sewerage)
  • 21-50 m³: KES 70 per m³ (Water), KES 63 (Sewerage)
  • Over 300 m³: KES 80 per m³ (Water), KES 72 (Sewerage)

Sewerage charges are calculated at 75% of water consumption.

Compare water usage scenarios and see how different consumption levels affect your bill.

Average household uses 20-40 m³ monthly
Please enter a valid water consumption amount.
🚰 Water Saving Tips
  • Fix leaks: A dripping tap wastes 20+ liters daily
  • Shower vs Bath: Shower uses 30L, bath uses 100L
  • Full loads: Run washing machine & dishwasher full
  • Collect rainwater: For gardening & cleaning

Save water, save money, help Nairobi's water supply!

Water Bill Results

Nairobi Water Bill Breakdown
Total Water Bill
KES 0
Water Consumption
0 m³
Water Charge
KES 0
Sewerage Charge
KES 0
Sewerage Units (75%)
0 m³
Cost per m³
KES 0.00
Consumption Breakdown
First 6 m³ (KES 45/m³) 0 m³ = KES 0
Next 14 m³ (KES 67/m³) 0 m³ = KES 0
Next 30 m³ (KES 70/m³) 0 m³ = KES 0
Next 50 m³ (KES 76/m³) 0 m³ = KES 0
Next 200 m³ (KES 78/m³) 0 m³ = KES 0
Above 300 m³ (KES 80/m³) 0 m³ = KES 0
NCWSC Tariff Rates
Consumption (m³) Water Rate (KES/m³) Sewerage Rate (KES/m³) Effective Rate
0 - 6 KES 45 KES 43 KES 77.25
7 - 20 KES 67 KES 56 KES 109.00
21 - 50 KES 70 KES 63 KES 117.25
51 - 100 KES 76 KES 65 KES 124.75
101 - 300 KES 78 KES 68 KES 129.00
301+ KES 80 KES 72 KES 134.00

Effective rate = Water rate + (75% × Sewerage rate). Sewerage calculated at 75% of water consumption.

📧 Email Me My Water Bill

Get a detailed breakdown of your water bill calculation sent to your email.