Fastest..... Google = 220 cm = in. and you get the answer quick!!
You need to get a tape measure which has inches on one side & centimetres on the other side.Then all you have to do, is look at the inch measurement turn it over & then you have the measurement in centimetres.
Hey beautiful lady, lovely to see you here..
an easy way to remember is
10 cm is roughly but just under 4 inches
30 cm is roughly but just under 12 inches (1 foot)
Hope this link works for you as it shows sizing conversions for just about all bed linen.
https://www.daniadown.com/duvetsi...
Another time just Google "centimeters to inches" or "inches to centimeters" and several choices will pop up with charts.
or take paper and pencil and divide cm by 2.54 to get inches or multiply with t he same factor to get from inches to cm.
A rough estimate would be 10 cm is 4" but don't use that for large amounts!
90 inches are 228.6 cm
102 inches is 259.08 cm
Now you have it in both directions.
Go here https://www.convertunits.com/from...
I converted using it and the answer is
220cm = 86.6 in
180 cm = 70.8 in
Hope this helps