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How to Price Water Per Litre: A Simple Method and Calculator

Herritech engineering teamUpdated 30 September 20264 min read

How to Price Water Per Litre: A Simple Method and Calculator
Pictured: H-TECH 2-channel digital water refilling station.
Quick answer: Add up your monthly costs (rent, power, water bill, wages, filters) plus a monthly share of the machine price, divide by the litres you sell in a month to get your cost per litre, then add your margin. Check the result against what customers nearby will pay; if it is too high, the fix is usually more volume, not a lower margin.
Key facts
  • Cost per litre = all monthly costs ÷ litres sold per month
  • Include a monthly share of the machine price
  • Price 20 L refills clearly; many customers buy by the bottle
  • More litres sold lowers your cost per litre
On this page
  1. Water price calculator
  2. Step by step
  3. Why volume matters most
  4. Machines by capacity
  5. Frequently asked questions

Water price calculator

Replace the example figures with your own. The machine price starts at our current price for the 125 LPH 3-in-1 station.

Your cost per litre–
Suggested price per litre–
Suggested price per 20 L–
Profit per month at that price–

Example inputs only; they are not market prices. Amounts under KSh 100 are shown to the cent.

Step by step

  1. List monthly costs: rent, electricity, raw water (council bill or borehole pumping), wages, cleaning.
  2. Add consumables: filters, UV lamp and membrane replacement spread per month.
  3. Add the machine: machine price ÷ the months you want to recover it in.
  4. Divide by litres per month to get your cost per litre.
  5. Add your margin and round to a simple price per 20 litres.

Why volume matters most

Rent and wages stay the same whether you sell 500 or 3,000 litres a day, so every extra litre lowers your cost per litre. A good location, clean shop and delivery service raise volume.

Machines by capacity

ModelSize / capacityPrice
H-TECH 125 LPH 3-in-1 Borehole RO Water Vending Machine125 LPHKSh 330,000
H-Tech RO Vending Station 125 LPH125 LPHKSh 370,000
H-Tech RO Vending Station 125 LPH with Antiscalant125 LPHKSh 420,000
H-Tech 3-in-1 Municipal UF 250L250 LKSh 240,000
H-Tech RO Vending Station 250 LPH250 LPHKSh 490,000
H-Tech RO Vending Station 250 LPH with Antiscalant250 LPHKSh 540,000
H-Tech 3-in-1 Municipal UF 500L500 LKSh 280,000
H-Tech 3-in-1 Borehole RO 500 LPH500 LPHKSh 550,000
H-Tech RO Vending Station 500 LPH500 LPHKSh 750,000
500 LPH RO VENDING MACHINE(semi automatic)500 LPHKSh 770,000
500 LPH H-Tech RO Vending Machine (Full automatic)500 LPHKSh 800,000
H-Tech RO Vending Station 500 LPH with Antiscalant500 LPHKSh 800,000
H-Tech 3-in-1 Municipal UF 1000L1,000 LKSh 320,000
1000 LPH H-Tech RO Vending Machine(full automated)1,000 LPHKSh 900,000
H-Tech 3-in-1 Borehole RO 1000 LPH1,000 LPHKSh 920,000
H-Tech RO Vending Station 1000 LPH1,000 LPHKSh 950,000
H-Tech RO Vending Station 1000 LPH with Antiscalant1,000 LPHKSh 1,030,000

Current listed prices incl. VAT (updated 30 September 2026). Full range: Water vending machines price list.

Related: start-up cost breakdown and adding water delivery.

Watch: starting a water refill business

Cost of starting a water refilling business in KenyaVideo · 1:10 · Herritech Ventures on YouTube
Water refilling station equipment set-upVideo · 0:55 · Herritech Ventures on YouTube
Subscribe on YouTubeFollow us on TikTokAll videos

Frequently asked questions

How do I calculate the cost of water per litre?

Add all monthly costs, including a share of the machine price, and divide by the litres sold per month.

Should I price per litre or per 20 litres?

Work it out per litre, then show clear prices per 20 L and for smaller bottles.

How can I lower my cost per litre?

Sell more litres: better location, delivery, school and office customers.

Which machine size should I buy?

Match it to realistic daily sales. Machines range from KSh 110,000 to KSh 1,030,000.

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