Question 1

Are all calculators free?

Accepted Answer

Yes, all CalculaFácil calculators are 100% free. They don't require registration, subscription, or have usage limits. You can use them as many times as you need at no cost.

Question 2

Do I need to create an account to use the calculators?

Accepted Answer

No, you don't need to create any account. All calculators work directly from your browser without registration. Simply enter the data and get results instantly.

Question 3

Are the calculations accurate?

Accepted Answer

Yes, all our calculators use standard mathematical formulas and have been thoroughly tested. Results are accurate and reliable for personal, educational, or professional use. Although we do our best, we are not responsible for errors, omissions, or damages resulting from the use of our tools.

Question 4

How does the BMI calculator work?

Accepted Answer

The BMI (Body Mass Index) calculator uses the formula: BMI = weight (kg) / height (m)². Simply enter your weight in kilograms and height in centimeters, and the calculator will show your BMI with the corresponding category according to WHO standards.

Question 5

How to calculate discount percentage?

Accepted Answer

To calculate a discount, use the percentage calculator. Select the "Increase/Discount" tab, enter the original price and discount percentage. The calculator will automatically show you the final price after the discount.

Question 6

Does the loan calculator include an amortization table?

Accepted Answer

Yes, our loan calculator generates a complete amortization table that shows month by month the breakdown of principal, interest, and remaining balance. This helps you understand exactly how your loan will be paid.

Question 7

What currencies does the currency converter support?

Accepted Answer

The currency converter supports major world currencies including USD (Dollar), EUR (Euro), GBP (British Pound), JPY (Japanese Yen), and many others. Exchange rates are regularly updated.

Question 8

Can I use the calculators on my mobile phone?

Accepted Answer

Yes, all calculators are optimized for mobile devices. They work perfectly on smartphones and tablets with any modern browser (Chrome, Safari, Firefox, etc.).

Question 9

Does the calculator save my data?

Accepted Answer

No, we don't save any of your data. All calculations are performed locally in your browser. Your information and results are completely private and not stored on our servers.

Question 10

How to calculate my daily calorie needs?

Accepted Answer

Use our calorie calculator which uses the Mifflin-St Jeor formula. Enter your sex, age, weight, height, and physical activity level. The calculator will show your BMR (Basal Metabolic Rate) and recommended daily calories based on your goal (maintain, lose, or gain weight).

Question 11

What is compound interest and how to calculate it?

Accepted Answer

Compound interest is when the generated interest is added to the principal and also generates interest. Our calculator uses the formula: M = C × (1 + r)^t, where C is the principal, r is the interest rate, and t is the time. Simply enter your data and get the result with yearly breakdown.

Question 12

Do the calculators work without internet connection?

Accepted Answer

Most calculators work without connection once the page is loaded. However, the currency converter requires internet connection to get real-time updated exchange rates.

Frequently Asked Questions