Plan Your Borehole in Minutes
Three free borehole calculators that take you from first idea to a clear plan. Work out the cost, see the savings, and size your pump and tank.
Thinking about a borehole but not sure where to start? Our free borehole calculators do the hard maths for you in under a minute each.
Each tool answers a different question, and together they give you a complete picture before you ever pick up the phone. They are built on our real field experience drilling across all 47 counties of Kenya since 2010.
Cost Calculator
Estimate the total cost of your borehole project. Choose your county, depth, casing and equipment, and get an instant breakdown tailored to your site.
Open Cost CalculatorSavings Calculator
Find out how fast your borehole pays for itself. Compare what you spend on water now against owning a borehole, and see your long term savings.
Open Savings CalculatorPump & Tank Selector
Work out the right pump size and water tank for your needs. Enter your depth and demand to get a recommendation based on real engineering.
Open Pump & Tank ToolHow to Use Them Together
The three tools follow the natural order of planning a borehole. Used in sequence, they take you from a rough idea to a confident decision.
Start with the cost calculator to see what your project might cost. Then use the savings calculator to see how quickly that cost pays back.
Finally, the pump and tank selector helps you understand the equipment you will need. By the time you call us, you already know your numbers.
Prefer to Just Talk to an Expert?
Skip the tools and speak to a licensed Bonvic Drilling engineer. Free site assessment, no obligation.
Want the full background before you start? Read our complete 2026 borehole drilling guide, or explore our local guides for Nairobi, Kiambu and Kajiado.