Help & Support

Everything you need to know about using HealthCalc tools.

Getting Started

HealthCalc is a collection of free, privacy-focused health and fitness calculators that run entirely in your browser. Here's how to get started:

  1. Browse the home page to find the calculator you need
  2. Click on any calculator to open it
  3. Enter your measurements, goals, or health data
  4. All calculations happen in your browser - your data never leaves your device
  5. Get instant results and save or share them if needed

Common Questions

How do I use a calculator?

Each calculator has simple, straightforward inputs. Enter your measurements, values, or health data, select any preferences, and click calculate. You'll get instant, accurate results.

Is my health data safe and private?

Yes! All calculators run entirely in your browser. Your health data is never uploaded to our servers or transmitted anywhere. Everything is processed locally on your device, so your privacy is fully protected.

Do I need to create an account?

No! All tools are available immediately without any registration, login, or account creation. Just visit and use.

How accurate are the calculators?

Our calculators use scientifically-backed formulas and algorithms. However, results are estimates based on the inputs you provide. For personalized health advice, consult with a healthcare professional.

Can I use calculators offline?

Yes! Once the calculator page has loaded, you can use them offline without an internet connection. Just load the page once while online, then you can calculate anytime.

Is there a cost to use these tools?

No! All tools are completely free to use with no hidden fees, subscriptions, or premium tiers. We may display ads to support the service.

Troubleshooting

Calculator isn't loading

  • Refresh the page and try again
  • Clear your browser cache and cookies
  • Try a different browser (Chrome, Firefox, Safari, Edge)
  • Ensure JavaScript is enabled
  • Check your internet connection

Invalid input or calculation error

  • Verify all required fields are filled out
  • Check that entered values are valid numbers
  • Ensure values are within realistic ranges
  • Make sure you're using the correct units (kg, lbs, cm, inches, etc.)
  • Try refreshing the page and re-entering your data

Results seem incorrect

  • Double-check your input values are accurate
  • Verify you've entered the correct measurements or data
  • Remember that calculated results are estimates
  • For personalized advice, consult a healthcare professional

Browser compatibility issues

We support the latest versions of major browsers:

  • Chrome 90+
  • Firefox 88+
  • Safari 14+
  • Edge 90+

Update your browser if you're experiencing issues.

Need More Help?

Can't find what you're looking for? We're here to help!

Contact Support Browse Tools

Email us at contact@healthcalc.me for assistance.