Calculator Questions
How accurate are the calculators?
Our calculators use standard mathematical formulas and are designed to be accurate. However, they're for informational purposes only. For critical financial or medical decisions, always consult a professional.
Where do the currency/crypto rates come from?
Currency rates are from ExchangeRate-API and crypto prices from CoinGecko. Rates are cached for 1 hour (currency) or 1 minute (crypto) to provide fresh data while being respectful to the APIs.
Why does the BMI calculator use feet/inches and pounds?
Our calculators default to US imperial units since most of our users are from the United States. We're working on adding metric unit options for all calculators.
Can I trust the health calculators for medical advice?
No. Health calculators (BMI, Body Fat, Calorie, etc.) provide estimates based on general formulas. They should not replace professional medical advice. Always consult healthcare providers for health-related decisions.
Features & Tips
How do I switch to dark mode?
Click the sun/moon icon in the top-right corner of the page. Your preference is saved automatically. If you have dark mode enabled in your system settings, it'll default to dark mode.
Is there a quick way to find a specific calculator?
Yes! Press Ctrl+K (or Cmd+K on Mac) to open the search. Type the name of any calculator to quickly jump to it.
How do I clear my inputs quickly?
While focused on any input field, press Escape to clear all inputs in that calculator and hide the result.