Our standards
Clear formulas. Honest limits.
What a calculator can tell you, what it cannot, and which assumptions shape the result.
Formula selection
We prioritize documented equations that can be explained in plain language and state the method used.
Writing and review
Descriptions help adults understand inputs, outputs, and limitations without presenting estimates as medical conclusions.
Corrections
We update logic and content when a method or explanation can be made more accurate or useful.
Commercial separation
Brand partnerships are separate from calculator results and never change a formula or output.
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