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Every message reaches a person, not a ticket queue. Because HeightFast is small, telling us which tool you used and what you expected is the fastest way to a useful reply.
Since HeightFast is a height converter, most of what arrives concerns checking where a child sits on a growth chart — and the occasional result that seems off. Either is welcome here.
Our inbox
Our inbox is support@heightfast.com. We try to answer within two business days.
What to include
- Which calculator you used, or a copy of its address.
- What you entered — for HeightFast that is usually the height you enter — rounded is fine, since we only need to repeat the arithmetic.
- The answer you got next to the answer you anticipated.
- Device, browser and anything else that may have interfered.
Anything concerning checking where a child sits on a growth chart is easier to answer when you include the page address, so we can look at the same tool you did.
When a number looks off
If a number looks off, we want to know. The calculation behind HeightFast is documented — it converts through a single base unit — centimeters — so a feet-and-inches entry and a meter entry land on the same value, then looks the height up in growth-reference percentile tables — which means most errors trace to an input that does not match the model, or a rounding edge. Tell us what you expected and where, and we will check it.
What happens to your message
Your message serves only the one purpose of a reply. It goes on no list and to no third party. Full details live in the privacy policy.