Smart Tools: Password, BMI & Loan EMI Calculators
Use these free Smart Tools to generate a random password, calculate adult Body Mass Index and estimate a monthly loan EMI, total payment and total interest.
Quick Access to Other Tools
Use the Free Smart Tools
Each tool has a separate input form and result area. Enter the requested values, select the relevant button and review the result together with the stated limitations.
Random Password Generator
Generate a 4-to-30-character password containing uppercase letters, lowercase letters, numbers and symbols.
The current generator uses JavaScript Math.random and should not be treated as a cryptographically secure password generator.
Adult BMI Calculator
Calculate Body Mass Index from weight in kilograms and height in centimetres.
BMI is a general screening calculation and does not provide an individual medical diagnosis.
Loan EMI Calculator
Estimate monthly EMI, total payment and total interest using a loan amount stated in Indian rupees.
This is a mathematical estimate. Actual lender repayments, fees, taxes and rounding may differ.
About the FreeToolsPoint Smart Tools
This Smart Tools collection combines three small utilities on one page. The Password Generator creates a random character sequence, the BMI Calculator compares weight with squared height, and the Loan EMI Calculator estimates reducing-balance monthly instalments.
Each tool runs through JavaScript in the browser and displays its result directly on the page. The tools do not require a FreeToolsPoint login or user account.
Quick Inputs
Each tool contains only the fields required for its calculation.
Immediate Results
Results appear after selecting the relevant calculation button.
Mobile-Friendly
The layout adjusts to supported mobile, tablet and desktop browsers.
No Registration
The tools can be used without creating a FreeToolsPoint account.
How the Smart Tools Work
Password Generator Logic
The generator begins with one uppercase letter, one lowercase letter, one number and one symbol. It fills the remaining positions from the combined character set and then shuffles the result.
BMI Formula
The calculator converts centimetres into metres and divides the entered weight by the square of the height.
BMI = weight in kilograms ÷ (height in metres × height in metres)
The built-in script labels results below 18.5 as Underweight, results below 24.9 as Normal weight, results below 29.9 as Overweight and higher results as Obese.
Loan EMI Formula
The annual percentage rate is divided by 12 and converted into a decimal monthly rate. The monthly EMI is then calculated using the reducing-balance instalment formula.
EMI = P × r × (1 + r)n ÷ ((1 + r)n − 1)
In the formula, P is the loan principal, r is the monthly interest rate and n is the number of monthly instalments.
How to Use These Smart Tools
Generate a Password
- Enter a password length from 4 to 30 characters.
- Select Generate Password.
- Review the generated character sequence.
- Store important passwords in a trusted password manager.
Calculate BMI
- Enter weight in kilograms.
- Enter height in centimetres.
- Select Calculate BMI.
- Review the calculated number and general category.
Estimate Loan EMI
- Enter the loan principal in Indian rupees.
- Enter the annual interest rate as a percentage.
- Enter the repayment period in months.
- Select Calculate EMI.
- Review the estimated EMI, total payment and total interest.
Important Tool Limitations
- The password generator uses Math.random rather than a cryptographic random-number generator.
- The password cannot be copied using a dedicated tool button.
- BMI provides a simplified screening calculation only.
- The BMI calculator accepts only kilograms and centimetres.
- The EMI calculator requires an interest rate above zero.
- The EMI result is formatted with the Indian rupee symbol.
- Lender fees, insurance, taxes, late charges and changing interest rates are not included.
- Results are rounded to the decimal places specified by the underlying JavaScript functions.
Smart Tools Privacy
The password generation, BMI calculation and loan EMI calculation run through JavaScript in the browser. The three tool functions do not contain commands that upload the entered values to FreeToolsPoint.
The page includes Google AdSense code. Advertising services, the website host and other site services may process technical information or use cookies according to their applicable policies and the main FreeToolsPoint Privacy Policy.
Avoid entering confidential account passwords or sensitive personal financial information into a shared or untrusted device.
Smart Tools Frequently Asked Questions
Which tools are included on this page?
The page includes a Random Password Generator, Adult BMI Calculator and Loan EMI Calculator.
Is the generated password cryptographically secure?
No such guarantee is made. The current generator uses JavaScript Math.random, which is not intended for cryptographic security.
Does every generated password include different character types?
The script initially adds one uppercase letter, one lowercase letter, one number and one symbol before filling and shuffling the remaining positions.
Does BMI provide a medical diagnosis?
No. It provides a mathematical screening result based on height and weight. It does not diagnose a disease or assess complete individual health.
Which measurement units does the BMI Calculator use?
It accepts weight in kilograms and height in centimetres.
What does the Loan EMI Calculator show?
It displays an estimated monthly EMI, total payment across the entered tenure and total interest.
Which currency does the EMI result use?
The output uses the Indian rupee symbol. Enter the loan principal in rupees for a consistent result.
Does the loan result include fees and insurance?
No. It uses only the principal, annual interest rate and number of monthly instalments entered into the form.
Are the entered values permanently stored?
The tool functions do not save the entered values in localStorage or create a FreeToolsPoint calculation history.
Can I use the Smart Tools on mobile?
Yes. The layout is designed to adjust to supported mobile, tablet and desktop browsers.