[Assunkkensatt]

no problems over here. only that I cannot think in degrees F, I have no idea whatsoever.

To convert Farenheit to Centigrade (aka Celsius) subtract 32 and then divide by 9 and multiply by 5.

To convert Centigrade to Farenheit divide by 5 and then multiply by 9, finally adding 32.

The two main points are that freezing is 0 Centigrade, 32 Farenheit, and boiling point (of water) is 100 Centigrade, 212 Farenheit.

Easy really.

68 F is about 20 C. and 0 F. is about -30C so -70 F. would be about -100C I would think, I will have to get the conversion tables from the net. and start using C due to the fact that is what is used here,, but in the states no one understands C.

Using my above formulae you can work out that whilst 68 F is exactly 20 C your two other conversions are quite wide of the mark.

0 F is actually only -18 C (actually 17.78 C), -30 C is -22F

and

-70 F is only -57 C (actually 56.67 C), -100 C is -148 F!!!

The inacuracies would be caused by the conversions not being relative as you either have to add or subtract 32 before doing the relative part of the math.

David