Nairobi Water Bill Calculator – Estimate Your Monthly Water Costs
Understanding your Nairobi Water and Sewerage bill helps you manage household expenses efficiently. Our Nairobi Water Bill Calculator provides an accurate estimate of your monthly water and sewerage costs based on consumption levels and approved tariffs.
Nairobi Water Supply Area Coverage
The Nairobi City Water and Sewerage Company (NCWSC) serves Nairobi County and parts of Kiambu, Machakos, and Kajiado counties. The main water sources include:
- Ndakaini Dam
- Sasumua Dam
- Ruiru Dam
- Kikuyu Springs
These sources supply millions of residents, making Nairobi’s water network the largest in Kenya.
How the Nairobi Water Bill Calculator Works
The calculator determines your total water bill based on:
- Your total water consumption (in cubic meters, m³)
- Sewerage charges (75% of water consumption)
- Approved Nairobi Water Tariffs
Nairobi Water Tariff Breakdown (Per m³)
| Consumption Block (m³) | Tariff (KSh per m³) |
|---|---|
| 1 – 6 | 45 |
| 7 – 20 | 67 |
| 21 – 50 | 70 |
| 51 – 100 | 76 |
| 101 – 300 | 78 |
| >300 | 80 |
Additionally, sewerage charges are calculated at 75% of total water consumption.
Example Calculation Using the 2025 Tariffs
Scenario 1: Household Using 15m³ of Water
- First 6m³ @ KSh 45: KSh 270
- Next 9m³ @ KSh 67: KSh 603
- Total Water Bill: KSh 873
- Sewerage Charges (75% of 15m³ @ KSh 67): KSh 753.75
- Total Monthly Bill: KSh 1,626.75
Scenario 2: Household Using 50m³ of Water
- First 6m³ @ KSh 45: KSh 270
- Next 14m³ @ KSh 67: KSh 938
- Next 30m³ @ KSh 70: KSh 2,100
- Total Water Bill: KSh 3,308
- Sewerage Charges (75% of 50m³ @ KSh 70): KSh 2,625
- Total Monthly Bill: KSh 5,933
Why Use the Nairobi Water Bill Calculator?
✅ Accurate Water Bill Estimation – Plan your household budget effectively. ✅ Saves Time – No need for manual calculations. ✅ Up-to-Date Rates – Uses the latest Nairobi Water & Sewerage tariffs. ✅ Ideal for Homeowners & Businesses – Helps estimate monthly costs.
Check Your Water Bill Now!
Use our Nairobi Water Bill Calculator to estimate your next water and sewerage bill. Enter your water consumption details and get instant results!