Trust & transparency
Corrections
Found a number that does not match its source? Tell us, and the page is fixed in place (with its date updated and the change listed here).
How to report a mistake
Email contact@biologycalculator.org with:
- the page address (the URL you were reading);
- the number or sentence you believe is wrong, quoted exactly;
- the source it should match, if you have one: a link or a citation.
Each page shows its formula, its cited source and its update date, so a disagreement usually comes down to one of three things: the prose drifted from the calculator's own output, the worked example mis-transcribed the formula, or the cited source says something different from how the page summarised it. All three are fixable; the third gets checked against the source before anything changes.
What happens next
The page is re-checked against its cited source, verified against our peer-reviewed biological reference tables, reviewed by our qualified experts following our editorial policy, and the correction is documented in the public log below. If you have questions regarding our authors' qualifications or scientific methods, please view our about and editorial board page or reach out through our direct editorial contact desk. Corrections never change a page's URL: links to a page keep working.
Correction log
Every correction to published content is listed here, newest first. The first seven corrections below came from checking every page against its own calculator before launch, on 2026-09-30.
| Date | Page | What changed |
|---|---|---|
| 2026-09-30 | /animal-pregnancy/dog-pregnancy-calculator/ | Worked-example whelping date corrected: the prose said April 26 where the page's own script returns April 28 for a March 1 breeding date. |
| 2026-09-30 | /cat/fish-oil-dosage-calculator-for-cats/ | Example and FAQ daily-range top corrected from 1,004 mg/day to 998 mg/day to match the rendered 10 lb range row. |
| 2026-09-30 | /livestock/livestock-fence-cost-calculator/ | Example totals corrected from $425 / $3,068 / $1.92 per foot to $450 / $3,093 / $1.93 per foot to match the calculator's output. |
| 2026-09-30 | /livestock/grain-bin-calculator/ | Example and FAQ corrected from 14,723 × 56 = 824,488 lb (412.2 t) to 14,723.37 × 56 = 824,509 lb (412.3 t), using the unrounded bushel figure the calculator displays. |
| 2026-09-30 | /ecology-environment/carrying-capacity-calculator/ | Example and guide correction: the prose said ≈ 17.9 years where 5 × ln 171 = 25.71, which is what the calculator shows (≈ 25.7 years). |
| 2026-09-30 | /other-animals/reptile-tank-size-calculator/ | Example wording "6 in in width" corrected to "6 in wide / 6 in tall", matching how the calculator renders both dimensions. |
| 2026-09-30 | /lab-molecular-biology/bacterial-growth-curve-calculator/ | Plausibility row was converting hour inputs to hours while its thresholds assumed minutes: a real bug in the calculator, fixed so growth rates are judged in true minutes; the example sentence was rewritten to the corrected verdict. |