I am making a birthday cake of three tiers 10" 8" and 6"round, my problem is I have madeira cake mixes and I am not sure how much mix to put in each tin. The recipe ask for 2lb loaf tin but I can't work out how to alter this, can anyone help.

The best way is to calculate the volume of each tin.
If you start with the rectangular, that's easy:
side x side x height = volume

Then calculate the round ones
radius x heigth = volume
You can use this site: http://www.online-calculators.co.uk/volumetric/cylindervolume.php

You will then know how many cubic inches each tin is.

If you need more hlp just PM me the measurments and I can calculate it for you

Fill your pan with water then pour into a measuring cup to see how much it is.

2nd on tiggy's instructions! Quick and easy and requires no math...LOL

Collar your pans with parchment so if you overfill then you have a nice tall layer you can level and not a huge nasty mess in your oven.

I second that too!! It's my engineer husband that told me to calculate like that Why does men always have to complicate things??

My DH would do the same thing but I always go for the easy way. I just amaze him sometimes

Same here, but he's given me very good help on constructing cake boards, transportation boxes and such. I use to tell him he's school smart and I'm street smart He always does things the right and proper way while I try every shortcut and new way I can think of

thankyou for your help

Yeah my DH is book smart and street dumb so I have to pick up the slack It actually makes for a good pair.