How long for 91 Runecrafting?

How long will it take for 91 runecrafting? And what method should i use for it?

Only method i can think of is ring of dueling to the fire altar then back to c wars. thats like 15-18k exp an hour i believe.

 

I think graahk method is better than that.. Anyways, don't know how much would 91 take, im curious myself.

 

You should use nature altar with spirit graahk familiar. It's still gonna take you 300 hours. Or you could do ZMI

 

Yeah id agree with the graahk method. The dueling ring/ Fire method is F2P or to level 44 for members. If your 44 just try graahk or Abyss if you dont meet the requirments.

 

I calculated how long it would take to get from 51-91 Runecrafting on my guy (cuz that's what lvl I was at), how much money you would spend, and how much profit you would make.
On Runecrafter Pro (rsbots.net)

51-82: Graahk Runecrafting
At 17k xp per hour (until level 75, then it gets higher), 135.2 hours (2.3 mil xp)
255,410 Nature Runes (not counting extra runes)
Essence cost (at 153 gp per ess): 39,077,730 gp
Nature cost (at 241 gp per nature): 61,553,810 gp
Profit: 22,476,080 gp

82-91: Double Astrals
At 20k xp per hour, 174 hours (3.5mil exp)
400,201 Astrals Runes (not counting extra runes)
Essence Cost (at 153 gp per ess): 61,230,753 gp
Astral Cost (at 158 gp per astral): 126,463,510 gp
Profit: 65,232,757 gp

So, in retrospect, it will take 309.3 hours and you will make 87,708,837 gp.