Scale to GramsCheck Letter Weight Before Mailing
Nothing is more frustrating than having mail returned for insufficient postage. Our AI letter weighing tool estimates the weight of your envelope from a photo, considering the envelope size, visible thickness, and any bulges that suggest extra contents like photos, cards, or multiple pages. Know before you mail whether you need additional postage.
Understanding Postal Weight Limits
Postal services have specific weight tiers that determine postage costs. In the United States, standard letters up to 1 oz require one stamp, with each additional ounce requiring an extra stamp. Letters exceeding certain weight or thickness thresholds are classified as large envelopes or parcels with different pricing. Our tool helps you navigate these thresholds before heading to the mailbox.
