Corrections Policy

Last reviewed: August 4, 2026

Our Commitment to Accuracy

OutputMath aims to provide accurate, transparent, and reproducible calculators and educational content.

Although calculators, formulas, examples, unit conversions, and technical explanations are reviewed before publication, errors can still occur.

This Corrections Policy explains how visitors can report a possible error and how OutputMath reviews, corrects, and documents material issues.

What Can Be Reported?

We welcome reports involving:

  • Incorrect calculator results
  • Formula errors
  • Incorrect unit conversions
  • Rounding problems
  • Broken reverse calculations
  • Incorrect default values or presets
  • Outdated platform specifications
  • Misleading examples
  • Unsupported factual claims
  • Incorrect terminology
  • Broken links
  • Display or accessibility problems
  • Calculator controls that do not function
  • Material spelling or formatting errors

Suggestions for new features or calculators are also welcome, but they are treated as editorial suggestions rather than corrections.

How to Report an Error

Please submit correction requests through our Contact page:

https://outputmath.com/contact/

When reporting a calculator problem, include as much of the following information as possible:

  • The affected page URL
  • The calculator name
  • The selected calculation mode
  • Every input value
  • The selected units
  • The displayed result
  • The result you expected
  • Your calculation method
  • A supporting source, if relevant
  • Your browser and device, if the problem appears technical
  • A screenshot, if it helps explain the issue

A complete and reproducible report allows us to investigate more efficiently.

Please do not include passwords, payment details, confidential client data, private business information, medical information, or other sensitive personal information.

Useful Calculator Error Report Example

A useful report might include:

Page:

https://outputmath.com/ctr-calculator/

Mode:

Calculate CTR from clicks and impressions

Inputs:

  • Clicks: 250
  • Impressions: 10,000

Displayed result:

2.5%

Expected result:

2.5%

If the displayed and expected results differ, include the formula you used:

CTR = Clicks ÷ Impressions × 100

Reports that include the exact inputs and selected mode are easier to reproduce than reports that only state that a calculator is incorrect.

How We Review Reports

When a credible correction request is received, the review may include:

  1. Opening the affected page.
  2. Reproducing the reported inputs and settings.
  3. Checking the displayed result.
  4. Calculating the result independently.
  5. Reviewing the implemented formula.
  6. Checking unit conversions.
  7. Reviewing rounding behavior.
  8. Checking relevant source material.
  9. Testing related calculation modes.
  10. Determining whether other pages are affected.

The scope of the review depends on the nature and potential impact of the reported issue.

Evidence Used in Reviews

Depending on the issue, we may consider:

  • Reproducible calculations
  • Official platform documentation
  • Technical standards
  • Government or regulatory publications
  • Codec or format documentation
  • Browser and software documentation
  • Established mathematical references
  • Original source material
  • Multiple independent sources
  • Actual browser testing

We prefer primary and authoritative sources for specifications that can change.

A source must directly support the disputed claim or calculation. Popularity, search ranking, or repetition across multiple websites does not by itself prove accuracy.

Formula Errors

A formula error occurs when the mathematical relationship implemented by a calculator is incorrect for the stated purpose.

Examples may include:

  • Using multiplication instead of division
  • Omitting a percentage conversion
  • Using the wrong denominator
  • Reversing two variables
  • Applying an incorrect constant
  • Using the wrong calculation mode
  • Failing to account for bits and bytes

When a formula error is confirmed, we aim to correct:

  • The calculator code
  • The displayed formula
  • Worked examples
  • Reverse calculations
  • Related explanatory text
  • Related guides that use the same formula

The affected calculator should be retested after correction.

Unit Conversion Errors

A unit conversion error may involve:

  • Bits and bytes
  • Decimal and binary file size units
  • Seconds, minutes, and hours
  • Inches and centimeters
  • Pixels and physical dimensions
  • Percentages and decimal values
  • Currency or rate units
  • Frames and frame rates

When reviewing a conversion issue, we check the base unit, conversion factor, output unit, and displayed label.

If multiple unit conventions are valid, we aim to clarify which convention the calculator uses rather than treating every difference as an error.

Rounding Differences

A difference caused only by rounding is not always an error.

OutputMath may:

  • Retain additional precision internally
  • Round displayed values
  • Round indivisible quantities to whole numbers
  • Round required minimums upward
  • Use practical file size units
  • Format very large or small numbers for readability

A correction may be appropriate if the rounding method:

  • Produces a materially misleading result
  • Is inconsistent with the calculator description
  • Rounds in the wrong direction
  • Hides an important difference
  • Creates inconsistent forward and reverse calculations

When necessary, we clarify whether a value is exact, rounded, estimated, floored, or rounded upward.

Platform Definition Differences

Platforms may use the same metric name but calculate or report it differently.

Examples include:

  • Engagement rate
  • Reach
  • Impressions
  • Views
  • Conversions
  • Attributed revenue
  • ROAS
  • ACOS
  • CPA
  • Ad frequency

A difference from a platform report does not automatically mean that the OutputMath arithmetic is incorrect.

We review:

  • The selected formula
  • The denominator
  • The attribution window
  • The reporting period
  • Platform-specific filters
  • Currency and tax treatment
  • Refunds or cancellations
  • Invalid traffic adjustments
  • Reporting delays
  • Rounding

When multiple definitions are legitimate, we aim to explain the difference and identify the definition used by the calculator.

Outdated Specifications

Third-party platforms, software products, media formats, and advertising systems may change their specifications without notice.

When an outdated specification is confirmed, we may update:

  • Preset values
  • Recommended settings
  • Maximum or minimum values
  • Explanatory text
  • Platform examples
  • Source links
  • Publication or review dates

Users should still verify critical, time-sensitive requirements through current official documentation.

Technical and Display Problems

Some reports concern presentation or browser behavior rather than mathematical accuracy.

Examples include:

  • A button does not respond
  • An input field is hidden
  • A dropdown cannot be selected
  • A result extends beyond the screen
  • A page has horizontal overflow
  • A shortcode displays an error
  • A calculator is not registered
  • Cached files load an older version
  • A script conflict prevents calculation

Technical reports may be tested using different browsers, screen sizes, devices, cache states, and input combinations.

Types of Corrections

Minor Corrections

Minor corrections do not materially change the meaning, method, or result.

Examples include:

  • Spelling
  • Punctuation
  • Grammar
  • Formatting
  • Broken internal links
  • Minor wording improvements
  • Non-material display problems

Minor corrections may be made without a separate correction notice.

Clarifications

A clarification improves understanding without changing the underlying result.

Examples include:

  • Defining a unit more clearly
  • Explaining a platform-specific term
  • Adding a limitation
  • Identifying a rounding method
  • Distinguishing an estimate from a measurement

Clarifications may be incorporated directly into the page.

Material Corrections

A material correction changes or meaningfully affects:

  • A calculator result
  • A published formula
  • A unit conversion
  • A technical conclusion
  • A significant example
  • An important platform specification
  • A recommendation based on incorrect information

When appropriate, a material correction may include a visible note explaining what changed.

Retractions or Removals

Content may be removed, redirected, consolidated, or retracted when:

  • The central calculation cannot be supported
  • The content is substantially misleading
  • Multiple pages create harmful duplication
  • Reliable correction is not possible
  • A legal or security concern requires removal
  • A better page replaces the original

When practical, an appropriate redirect may be used to guide visitors to the replacement content.

Correction Notices

When a visible correction notice is appropriate, it may identify:

  • The date of the correction
  • The affected formula, value, or statement
  • The previous issue
  • The corrected information
  • Whether related pages were updated

A correction notice should not exaggerate a minor formatting change or create a misleading history.

We do not create correction notices for errors that did not occur.

Related-Page Review

A formula, specification, or example may appear on more than one page.

When a material issue is confirmed, we aim to check related content, including:

  • The calculator page
  • Its explanatory guide
  • Category pages
  • Calculators using shared code
  • Reverse calculation modes
  • Worked examples
  • Presets
  • Internal links
  • Calculation Methodology references

Correcting only one occurrence may leave inconsistent information elsewhere.

Testing After a Correction

Depending on the change, post-correction testing may include:

  • Repeating the reported calculation
  • Checking known examples
  • Testing reverse calculations
  • Checking unit conversions
  • Testing empty and zero values
  • Testing unusually large or small values
  • Reviewing rounding
  • Checking calculation modes
  • Checking mobile display
  • Clearing caches
  • Reviewing browser errors
  • Checking related tools

A correction is not considered complete merely because the code or text was changed. The affected result should be tested when practical.

Publication Timing

We aim to prioritize corrections according to their potential impact.

Higher-priority issues may include:

  • Incorrect results across many inputs
  • Errors affecting multiple calculators
  • Material unit conversion errors
  • Misleading financial or performance examples
  • Security or privacy problems
  • Broken primary calculator functions

Minor wording or formatting corrections may be handled later.

We do not guarantee a specific investigation or publication time.

Communication With Reporters

We may contact a reporter if more information is needed.

Submitting a report does not guarantee:

  • A personal response
  • Acceptance of the proposed correction
  • Publication of a correction
  • Attribution
  • Compensation
  • A specific review timeline

Decisions are based on evidence, reproducibility, relevance, and editorial scope.

Good-Faith Disagreements

Not every disagreement establishes an error.

Differences may result from:

  • Alternative valid formulas
  • Different platform definitions
  • Different unit conventions
  • Different rounding rules
  • Different assumptions
  • Updated source material
  • Differences between estimates and measurements

When possible, we aim to explain the selected method and acknowledge legitimate alternatives.

Privacy of Correction Requests

Information submitted through the Contact page is handled according to our Privacy Policy:

https://outputmath.com/privacy-policy/

Do not submit confidential or sensitive information that is not necessary to investigate the issue.

No Retaliation for Good-Faith Reports

We welcome good-faith reports intended to improve accuracy, usability, accessibility, privacy, or security.

A respectful disagreement or correction request will not be rejected merely because it challenges published content.

Abusive, deceptive, threatening, spam, or malicious submissions may be ignored or restricted.

Policy Updates

This Corrections Policy may be updated as OutputMath adds calculators, content formats, review procedures, or technical systems.

The current version will be posted on this page with an updated review date where appropriate.

Contact Us

To report a possible error or request a correction, use:

https://outputmath.com/contact/

For calculator reports, remember to include the page URL, inputs, units, selected mode, displayed result, and expected result.

Related Pages

Editorial Policy:

https://outputmath.com/editorial-policy/

Calculation Methodology:

https://outputmath.com/calculation-methodology/

About OutputMath:

https://outputmath.com/about/

Disclaimer:

https://outputmath.com/disclaimer/

Terms of Use:

https://outputmath.com/terms-of-use/