How to Use the Multi-Function Calculator for Loans, BMI, and Science

Updated: Nov 2025 4 min read

Why clutter your phone with three different apps when you can do it all in one browser tab? UtilityKit's Multi-Function Calculator combines a scientific calculator, a BMI health checker, and a financial loan estimator into one interface.

Mode 1: Scientific Calculator

The default view is perfect for students and developers.

  • Basic Math: Addition, subtraction, multiplication, and division.
  • Advanced Functions: Trigonometry (sin, cos, tan), logarithms (log), and powers.
  • History: Use the history tape to recall previous calculations so you never lose your place.
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Mode 2: BMI Calculator

Switching to the BMI tab allows you to check your health metrics quickly.

  1. Select your unit system (Metric or Imperial).
  2. Enter your Height (cm or ft/in).
  3. Enter your Weight (kg or lbs).
  4. Click "Calculate" to see your Body Mass Index and category (e.g., Normal, Overweight).

Mode 3: Loan & Tip Calculator

Planning a mortgage or splitting a dinner bill? The financial mode helps you manage money.

For loans, enter the Principal Amount, Interest Rate, and Term (Years). The tool will instantly generate your estimated monthly payment and the total interest you will pay over the life of the loan.

Start Calculating

Access all three calculator modes for free right now.

Open Calculator

Conclusion

Versatility is key. Whether you are doing homework, checking your diet, or buying a house, UtilityKit's calculator adapts to your needs instantly without refreshing the page.