Convertors

We have the largest and most advanced selection of aquarium calculators and unit convertors you'll find anywhere on the Internet. To use these handy gadgets you'll need to become a registered member of the website.

	Alkalinity convertor A reef owner's calculator for converting between the several different measurements used for alkalinity. More »
	Volume convertor This volume conversion tool will convert Imperial gallons to litres or US gallons and vice versa. More »
	Length convertor Convert inches to cm, metres to feet, miles to kilometres and dozens of other length permutations with our length translation tool. More »
	Temperature convertor Convert a temperature in Fahrenheit to Celsius, and do the same the other way round using this handy convertor. More »
	Weight convertor Converts kilograms to stones, pounds to grams, and virtually any other weight conversion you can throw at it. More »
	Roman numeral convertor Understand the fin formulae used in fish descriptions, such as D-IV-9, with this convertor for Arabic and Roman numerals. More »
	Flow rate convertor Work out how many litres per hour that pump does with its output quoted at 1000 US gph with our handy Flow rate conversion gadget. More »
	Surface area convertor How many square feet are there in 1000 square metres? This calculator can give you the answer to this and dozens of other area-related calculations. More »
	Hardness convertor This program works out different measures of water hardness, from GH to Meq/l of calcium carbonate. More »
	Concentration convertor Translate between parts per thousand, parts per billion and parts per thousand with this neat concentration conversion program. More »
	Conductivity convertor This program converts between Total Dissolved Solids (TDS) readings and conductivity, which are becoming more widely used in Discus keeping circles. More »
	Multi-convertor All the other convertors in one handy program. This online conversion tool will work out just about any measurement you can think of. More »
	Calculators Like these calculators? We've got 23 even cooler ones in our newly expanded calculators section. More »