ProductLetters (1 oz.)Letters additional ouncesLetters (metered 1 oz.)Outbound International Letters (1 oz.)Domestic Postcards ProductSmall Flat Rate BoxMedium Flat Rate BoxLarge Flat Rate BoxRegular Flat Rate EnvelopeLegal Flat Rate EnvelopePadded Flat Rate Envelope ***All postage is subject to an additonal 27% recharge fee Current73 cents20 cents64 cents$1.5555 cents Current$8.55$14.75$19.90$8.05$8.35$8.80