Handy Conversions

Useful Conversions:

Ounces to millilitres multiply the ounces by 29.57 = millilitres
Pounds to kilograms... multiply the pounds by 0.4535 = kilograms

US gallon to litres...

multiply the US gallons by 3.785 = litres
UK gallon to litres... multiply the UK gallons by 4.546
= litres
Horsepower to watts... multiply the horsepower by 0.7457

= watts

Temperature

 

(F – 32) X 5


9

= Centigrade
(C x 9) + 32
5
= Farenheight

Cubic feet to cubic metres        
multiply the cubic feet by 0.02832
= cubic metres
Cubic metres to cubic feet
multiply the cubic metres by 35.32
= cubic feet
Mile to kilometres multiply the miles by 1.609
 = kilometres
Square feet to square metres multiply the square feet by 0.0929
 = square metres
Square metres to square feet
 multiply the square metres by 10.76
 = square feet
 
 
 
 
 One cubic metre of water
 = 1000 litres
 

 

 
 
To calculate how many litres a round tank or drum will hold:
 
To calculate the volume of a cylinder shaped container in litres.
   Measure the container using a metric ruler and note the sizes in parts of a metre.
   For example a 150mm radius = 0.15 metre.
   A height of 600mm = 0.6 metre

   Method is  1) 3.142 x ( radius x radius)
                      2) Multiply the answer by the height  of the container
                      3) Multply that answer by 1000.
                      4) The result is litres.

 
 
Dilution ratio formula:

1 divided by the ratio x the container size = volume of cleaning chemical to mix with water

Example: Dilution Ratio of  1:80
1 divided by 80 = 0.0125
x 1000 = 12.5mls of chemical per litre of water

If you dont want to do the math, then as a rough guide, one half cup = about 125mls. So if that is the only measure available then 1/2 a cup of chemical mixed with 10 liters of water in a bucket will be at a mixing ratio of about 1:80

Floor Finish:

A general guide for the coverage of most quality brands of floor polish would be 50 to 60 square metres per litre, per coating on regular vinyl floor coverings. Some stone or ceramic coverings will require more on the first 2 coats due to their porosity.

Floor finish products imported from USA may have square feet per US gallon coverage on the container label. To convert to square metres per litre use the following formula.

Square feet cover x 0.0929 then divided by 3.845 = square metre cover per litre

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