Hop leaf or hop pellets

[Phil]

I am about to start my next batch for beer. Hoping to get a nice winter ale going, I was looking at the recipe online and it did 20g of saaz pellets but my local brew shop selling saaz leaf. Should I up the weight of the leaf is the a major difference or just a slight one

Cheers in advance

[armedcor]

Does the recipe state what IBU's the 20g of hops should give? Just adjust the leaf hops to make up the same IBUs

[LordEoin]

add 10% for leaf