It all depends what level your firemaking is. if your firmaking was 60 (Just high enough to burn yews) you would have to burn just under 63,000 yew logs. I would suggest burning maple logs, you would have to burn around 93k but it's a lot cheaper, but if you want it done fast yews is the way to go.
It all depends what level your Firemaking is. lets say your Firemaking is 58 (Just high enough to burn eucalyptus logs) you would have to burn just over 66,000 eucalyptus logs.
24814 Maple Logs.
It all depends what level your Firemaking is. if your Firemaking is 60 (Just high enough to burn yews) you would have to burn just under 63,000 yew logs. I would suggest burning maple logs, you would have to burn around 93k but it's a lot cheaper, but if you want it done fast yews is the way to go.
You are looking at 131,378 Willow Logs.
You will need approximately 143,584 willow logs to get from level 53 to level 99 Firemaking.
you would have to burn 96,551 maple logs and you need 13,034,366 experience to go. Hope this helped.
you will need to burn 217k for lvl 15-99 firemaking, but i would suggest maple logs because you only need to burn 95k of them and they a reasonable cheap, 100k maple logs is around 4mil, which isn't bad for a 99
144, 679 willow logs, which equals to 2,025,506 GP if you want to buy them all.
this will entirely depend on how many hours a day you plan on training with these and what your current firemaking level is.
You will need 150k willow logs to get 99 firemaking. I suggest using maples and yews after because it is faster.
40,957,851 wow.. wat a nerd...haha Actually it wont take that many, in total from 0xp to 99 it takes 192k willows, (i know this because im getting 99 wc) so it would prob be about 191k willows from 20-99
The following link to tip.it should allow you to go to the skills calculator section to find out how many logs it will take you.