For a .56 oz letter, you would typically need two First-Class stamps, as one standard stamp covers up to 1 ounce. However, postage rates can vary, so it's always a good idea to check the current rates on the USPS website or at your local post office to ensure you have the correct postage.
That is 7 cups
0.4375 gal.
56oz
355 approx
56oz = 1588g
It takes three stamps to send a letter to Norway.
how many forever stamps = .94
56oz
3 stamps!
12 stamps
700 Stamps
what the price to mail letter to