Questions, corrections, or ideas for a new pet calculator? We read every message.
Email: tamsinandrews75+sites@gmail.com
We typically reply within a few business days. If you're reporting a formula discrepancy, it helps to include the inputs you used, the result you expected, and a source if you have one. If you'd like to use our charts in a classroom, clinic, or publication, go right ahead — a link back to the source page is all we ask.