Powerful Online Calculators & Generators
Free online tools for all your calculation and generation needs. Quick, accurate, and easy to use.
BMI Calculator
Calculate your Body Mass Index to understand your weight status and potential health risks.
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BMI Calculator
Body Mass Index (BMI) is a measure of body fat based on height and weight that applies to adult men and women.
BMI Categories
- • Underweight: BMI less than 18.5
- • Normal weight: BMI 18.5–24.9
- • Overweight: BMI 25–29.9
- • Obesity: BMI 30 or greater
Percentage Calculator
What is X% of Y?
X is what percent of Y?
Percentage Increase/Decrease
X plus/minus Y%
Loan Calculator
Monthly Payment
$--
Total Interest
$--
Total Cost
$--
Amortization Schedule
| Payment # | Date | Payment | Principal | Interest | Balance |
|---|
Loan Summary
Enter loan details to see payment information and amortization schedule.
Loan Calculation Formula
The monthly payment is calculated using the following formula:
M = P [ i(1 + i)^n ] / [ (1 + i)^n – 1]
- M = Monthly payment
- P = Loan amount
- i = Monthly interest rate (annual rate ÷ 12)
- n = Number of payments (loan term in years × 12)
Password Generator
Password Strength
Weak
Strong
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Password Tips
- • Use at least 12 characters
- • Include uppercase, lowercase, numbers, and symbols
- • Avoid dictionary words and personal information
- • Use a unique password for each account
- • Consider using a password manager
Password Entropy
Entropy is a measure of password strength in bits. Higher is better.
0
50
100
150
0 bits
Age Calculator
Years
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Months
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Days
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Weeks
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Age Details
Next Birthday
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Zodiac Sign
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Birthstone
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Days Until Next Birthday
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Age Facts
Enter your birth date to see interesting facts about your age.
Zodiac Signs
- • Aries: Mar 21 - Apr 19
- • Taurus: Apr 20 - May 20
- • Gemini: May 21 - Jun 20
- • Cancer: Jun 21 - Jul 22
- • Leo: Jul 23 - Aug 22
- • Virgo: Aug 23 - Sep 22
- • Libra: Sep 23 - Oct 22
- • Scorpio: Oct 23 - Nov 21
- • Sagittarius: Nov 22 - Dec 21
- • Capricorn: Dec 22 - Jan 19
- • Aquarius: Jan 20 - Feb 18
- • Pisces: Feb 19 - Mar 20
Unit Converter
Common Conversions
Select a category to see common conversion examples.
Conversion Tips
- • Temperature conversions use different formulas than other units
- • Digital storage uses binary (base-2) or decimal (base-10) prefixes
- • Some conversions are exact, while others are approximate
- • For precise conversions, use more decimal places