Disclaimer

Educational Estimates, Not Official Quotes

Everything on PostKid (“https://www.postkid.com”) is here to help families and classrooms learn about sending mail. The calculators and guides are educational and for general planning only. They are built in good faith on curated, rounded rate bands and typical delivery windows, but we make no warranty that any figure is accurate, complete, or current for your exact letter, stamp, or destination.

Postage and Delivery Change

Real postage rates, stamp values, delivery times, and mailing rules are set by postal services and carriers, and they change over time and vary by country. Our Postage Calculator and Stamp Quantity Calculator use illustrative bands modelled on common first-class pricing; our Mail Delivery Time Estimator gives typical, non-guaranteed ranges. Before mailing anything that has to be exact — an important package, a deadline-bound envelope, or international post — confirm the live price and requirements at the post office counter or the carrier’s official website.

Envelope, Time-Zone, and Reading-Time Tools

The Envelope & Paper Size Matcher uses common paper and envelope standards with a small margin; check an unusual envelope against your paper before sealing. The Pen-Pal Time-Zone Helper uses each city’s standard UTC offset and may be an hour off during daylight-saving months, so confirm before a live call. The Letter Word Count & Reading Time tool uses rounded average reading speeds — every child reads at their own pace, so treat it as a guide, not a grade.

A Note for Grown-Ups

Sending mail involves children handling paper, small stationery items, and a trip to a mailbox or post office. PostKid’s content assumes a parent, guardian, or teacher is supervising and using their own judgement about what is safe and suitable for a particular child. We are not responsible for how the tools or guides are used.

No Warranty and Limitation of Liability

PostKid disclaims all warranties, express or implied, including merchantability and fitness for a particular purpose. We do not warrant that our tools or information are error-free or that the site will always be available. To the maximum extent permitted by law, PostKid is not liable for any direct, indirect, incidental, or consequential loss — such as extra postage paid, a returned letter, or a missed delivery — arising from use of the site.

Advertising and External Links

PostKid displays advertisements from third-party networks, including Google AdSense, which are distinguishable from our editorial content; their presence is not an endorsement. The site may link to third-party websites we do not control or vet, and we are not responsible for their content or accuracy.

Changes to This Disclaimer

We may modify this disclaimer at any time. Changes are posted here with an updated date, and continued use of the site indicates acceptance of the current version.

Contact Us

Questions about this Disclaimer? Visit our Contact page or email support@postkid.com.