how much does it cost to mail envelope letter
Priority Mail $6.70 Express Mail $24.70 USPS Postage Fees *Envelope must not be thicker than 1/4 thick Flat Envelopes ( Small, Medium and Large) $1.61 1 2 - 6 7 - 12 13 - 18 $1.40 31 - 36 $2.24 Normal Size Envelopes* ( White -- 4 1/4 x 9 1/2 ) Any additional pages requires changing to Large Envelope ( Small ) price costs 19 - 24 $1.82 25 - 30 $2.03 Cost $1.00 $1.19 $0.88 $1.09 Number of Pages Cost Number of Pages 1 - 2 3 - 8 9 - 14 15 - 17 $0.47 $0.67