Corrections Policy

OverCalculator aims to correct calculator and reference errors clearly and in proportion to their effect. This policy covers formulas, implementation, units, defaults, rounding, assumptions, sources, explanations, and labels.

1. Send a report

Email [email protected] with the page URL, inputs and units used, result shown, expected result, your calculation, and any supporting primary or authoritative source. Describe possible consequences if the issue affects health, money, safety, or a legal or regulatory obligation. Avoid personal or confidential information. More guidance is on the Contact page.

2. Assessment

The report is assessed against the stated method, cited source, live implementation, units, validation, rounding, and explanatory text. Relevant boundary cases or worked examples may be repeated. Priority depends on likely impact, not on who submitted the report. A different result may reflect a valid alternative method, jurisdiction, date, or assumption rather than an error.

3. Correction or update

If a problem is confirmed, OverCalculator may correct the formula or code, replace or qualify a source, clarify assumptions or limitations, fix a label or example, or temporarily restrict a tool while the issue is resolved. If no error is found but the page can reasonably cause confusion, the explanation may still be improved.

4. Dates and material corrections

A material correction changes the output, method, important assumption, safety or decision context, or meaning a reasonable user could take from the page. A confirmed material correction changes the page's Updated date. When earlier use could remain misleading, the page may also carry a visible correction note describing the affected behavior and the change. Minor spelling, formatting, and presentation fixes do not by themselves change the date.

A date records the material page change; it does not certify that every source or externally maintained value was rechecked on that date.

5. Reconsideration and escalation

If you disagree with an assessment, reply to the same email thread with the specific point you believe remains unresolved and any additional source or reproducible example. Ask for reconsideration in the subject or message. The issue can then be reassessed at the organizational level using the available evidence. OverCalculator does not name individual reviewers or promise an outcome or response time.

Recently corrected

Pages corrected through this process in the site improvement program's corrections batches (waves 13–24):

• Natural Gas Converter — secondary worked-example figures corrected to the form's arithmetic (10 therms → 27.3065 m³; 1 CCF → 30.3842 kWh).
• kg to Gallons Converter — worked-example figure corrected to 1.8604 US gal for 10 kg honey.
• kg to lbs Converter — worked-example figures corrected across two batches (70 kg → 2,469.18 oz; 100 kg → 3,527.40 oz; 80 kg → 176.3698 lb).
• Liters to Pounds Calculator — worked-example product corrected to 2.7623775333 kg.
• Square Feet to Acres Calculator — worked-example hectare figure corrected (≈ 0.146322288) and the page verified.
• Stone to kg Converter — reference-table value corrected: 12 st → 76.204 kg.
• Stone to lbs converter — reference-table value corrected: 12 st → 76.204 kg.
• tbsp to Grams Converter — butter reference value corrected to 26.94 g and worked-example intermediates recomputed with the full conversion factor (29.5735 mL).
• Tbsp to ml Converter — exact-milliliter reference column recomputed with the full tablespoon factor (e.g. 29.5735 mL); the "15.00 mL" example display aligned to the form's "15 mL".
• tsp to grams Converter — reference values corrected (sugar 12.49 g; flour 5.21 g).
• Plant Watering Calculator — worked-example volume corrected to 3.915046875.
• Water Intake Calculator — ounce-conversion figure corrected to 149.37 oz.
• PPI Calculator — worked-example quotient corrected to 141.2119….
• Energy Converter — all-units calorie figure corrected to 1,720,841.30 cal (7,200,000 J ÷ 4.184).
• gal to kg Converter — prose figure corrected to about 42.9788 lb.
• Hours to Years Converter — reference rows corrected to round instead of truncate (50,000 h → 68.446270; 1,000 h → 0.114077).
• g to tsp Converter — worked example corrected: 100 g flour → 38.280 tsp (and derived rows); page then verified.
• kPa Converter — mmHg reference rows recomputed with the conventional mmHg factor; page then verified.
• kg to ounce converter — reference-table value corrected: 10 kg → 352.73962 oz.
• kPa to mmHg Conversion — reference-table value corrected: 101.325 kPa → 759.9999 mmHg.
• kPa to psi Conversion — reference-table values corrected (e.g. 220 kPa → 31.90830 psi).
• Battery Charge Time Calculator — worked example aligned to the form's display: 1 hour 19 minutes (the fractional minute floors).
• Yard Conversion — display aligned to the form: 0.00142 mi (no padded trailing zero).
• Torr to atm Conversion — display aligned to the form: 15,998.68 Pa (thousands grouping).
• Turkey Cooking Time Calculator — display aligned to the form's pluralized readout ("5 hrs 37 mins").
• Weight Converter — reference rows aligned to the form's readout (unit suffixes removed where the form renders them bare).
• Workout Recovery Time Calculator — display aligned to the form's pluralized readouts ("151 hrs", "72 hrs").
• Inch Converter — expected-result display corrected (en-US grouping).
• Katha to Square Feet Converter — expected-result display corrected (no padded zeros).

Scope

This process improves the published utility but cannot make a general calculator suitable for every individual case. For consequential decisions, verify the current result with the relevant authority, institution, original source, or qualified professional.