Accuracy

SnapCalc calculators are designed for practical estimation, comparison, and sense-checking. Accuracy depends on correct inputs, correct units, and whether the calculator’s assumptions match your real-world context.

What “accurate” means on SnapCalc

A calculator can be mathematically correct and still be inappropriate for your situation. This typically happens when:

• Inputs are incorrect or incomplete
• Units are mixed (for example monthly vs yearly, metres vs millimetres)
• The real-world rules differ (tax law, policy terms, contracts, regulations)
• Important context is missing (fees, thresholds, caps, dates, rate changes)

Common causes of misleading results

• Input errors: typos, decimal mistakes, swapped fields
• Unit confusion: percent vs decimal, hours vs minutes, kW vs W
• Hidden constraints: minimums, maximums, step changes
• Outdated assumptions: external rates, standards, or rules change over time

How to use results responsibly

• Use outputs as a starting point for comparison and planning.
• Validate results with an independent source when the decision is high-stakes.
• Confirm that assumptions align with your specific context before relying on the output.

Corrections and updates

SnapCalc calculators are reviewed and updated as issues are identified or assumptions change. If you believe a result is incorrect, report it via the Contact page and include the calculator URL and the exact inputs used.

Related policies

For legal context and usage limitations, see the Disclaimer and Terms pages.