Free calculators
Pool & spa calculators
Volume, chemistry, pumps, heating and pool service pricing.
27 calculators
Pool Volume
Pool volume in gallons, for rectangular, round and oval pools with a sloping floor..
Pool Gallons
How many gallons a pool holds, from its dimensions and the slope of its floor..
Pool Water
How long a pool takes to fill, and what the water costs..
Pool Pump Size
Pump flow and size from the volume and the turnover time you want..
Pool Heater Size
Heater size from surface area and the temperature rise you want, and how long it takes to get there..
Pool Heat Pump
Heat pump size for a pool, and what it costs to run compared with gas..
Chlorine
How much chlorine to add to bring a pool from its current reading to the level you want..
Pool pH
Acid or soda ash to move pool pH to where it should be..
Pool Alkalinity
Baking soda to raise total alkalinity, the buffer that keeps pH from swinging..
Calcium Hardness
Calcium chloride to raise hardness, which protects plaster and stops the water pulling calcium out of surfaces..
Pool CYA
Cyanuric acid to raise stabiliser, which protects chlorine from sunlight..
Pool Stabiliser
Stabiliser to add so chlorine survives the sun, and why it is easier to add than to remove..
Pool Salt
Salt to add for a saltwater chlorinator, in pounds and 40 lb bags..
Saltwater Pool
Salt for converting a pool to a chlorinator, or topping one up after heavy rain..
Pool Shock
Shock dose to raise free chlorine sharply and clear combined chloramines..
Pool Chemicals
Every common pool chemical dose in one place, from your volume and current test readings..
Pool Repair Cost
Estimate what a pool repair costs, broken into labour, parts and the call-out..
Pool Repair Cost
Estimate what a pool repair costs, broken into labour, parts and the call-out..
Pool Repair Cost
Estimate what a pool repair costs, broken into labour, parts and the call-out..
Pool Repair Cost
Estimate what a pool repair costs, broken into labour, parts and the call-out..
Pool Pricing
Price a pool job from what it costs you to deliver, with overhead and your target margin both accounted for..
Pool Repair Cost
Estimate what a pool repair costs, broken into labour, parts and the call-out..
Pool Repair Cost
Estimate what a pool repair costs, broken into labour, parts and the call-out..
Pool Repair Cost
Estimate what a pool repair costs, broken into labour, parts and the call-out..
Pool Repair Cost
Estimate what a pool repair costs, broken into labour, parts and the call-out..
Pool Repair Cost
Estimate what a pool repair costs, broken into labour, parts and the call-out..
Pool Repair Cost
Estimate what a pool repair costs, broken into labour, parts and the call-out..
Beyond the numbers
Tools that produce something you can send
Invoice Generator
Build a clean, itemised invoice and print it to PDF.
Open toolEstimate Generator
Turn a scope of work into a priced estimate the customer can approve.
Open toolWork Order Generator
Write the job down before the technician leaves: what, where, who, and what they need to take with them..
Open toolOther categories
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