Why Calculators Belong in Your Browser
We perform dozens of small calculations in daily life — estimating a loan EMI before applying, checking a BMI at home, calculating GST on a purchase, or figuring out the percentage increase in a price. Most of these calculations require a specific formula that most people do not have memorised.
Online calculators solve this: they embed the formula, provide a simple input interface, and return the answer instantly. No app to download. No account to create. Just fast, accurate answers.
AIVEXA offers over 30 free calculators at aivexallp.com, covering financial, health, mathematical, and everyday calculations.
Financial Calculators
EMI Calculator
The most-used financial calculator in India. Enter your loan amount, interest rate, and tenure, and the EMI calculator instantly shows you:
- Monthly EMI amount
- Total interest payable over the loan tenure
- Total amount paid (principal + interest)
- An amortisation schedule showing principal and interest breakdown for each month
Use this before taking a home loan, car loan, or personal loan to understand the full cost of borrowing.
GST Calculator
India's GST system has multiple slabs — 5%, 12%, 18%, and 28%. The GST calculator lets you:
- Calculate GST amount on any base price
- Determine the base price from a GST-inclusive amount (reverse GST)
- See CGST and SGST breakdowns for intra-state transactions
Essential for small business owners, freelancers, and anyone checking invoices.
Simple Interest and Compound Interest Calculators
Compare returns on savings and investments. Enter principal, rate, and time to see:
- Total interest earned
- Final amount
- For compound interest: the impact of different compounding frequencies (monthly, quarterly, annually)
Percentage Calculator
Surprisingly versatile. Calculate:
- What percentage is X of Y?
- What is X% of Y?
- Percentage increase or decrease between two values
- Percentage discount on an original price
Health Calculators
BMI Calculator
Body Mass Index (BMI) is a standard health screening tool. Enter your height and weight to:
- Calculate your BMI
- See where you fall on the BMI scale (underweight, normal, overweight, obese)
- Get context on what BMI means for health risk assessment
The calculator supports both metric (kg/cm) and imperial (lbs/feet) units.
BMR Calculator
Basal Metabolic Rate (BMR) is the number of calories your body burns at rest. Enter your age, sex, height, and weight to calculate your BMR and your estimated daily calorie requirement based on activity level. Useful for weight management planning.
Ideal Body Weight Calculator
Based on the Devine formula, this calculates an estimated ideal body weight range for your height. Note that this is a general guideline, not a medical prescription — consult a healthcare professional for personalised advice.
Date and Time Calculators
Age Calculator
Enter your date of birth and get your exact age in years, months, and days. Also calculates the number of days until your next birthday, and shows the day of the week on which you were born.
Date Difference Calculator
Calculate the number of days, weeks, months, or years between any two dates. Useful for project planning, calculating contract durations, or simply satisfying curiosity.
Days from Date
Enter a date and a number of days to find the resulting date — useful for calculating deadlines, delivery dates, or follow-up schedules.
Mathematical Calculators
Scientific Calculator
A full-featured calculator with trigonometric functions (sin, cos, tan), logarithms, powers, roots, and mathematical constants (π, e). Useful for students, engineers, and anyone with scientific calculation needs.
Fraction Calculator
Perform arithmetic with fractions — addition, subtraction, multiplication, and division. Shows results in simplified fraction form and as a decimal.
Roman Numeral Converter
Convert between standard numerals and Roman numerals. Useful for understanding historical dates, copyright years, or movie sequels.
How to Use AIVEXA's Calculators
All calculators are available at aivexallp.com:
1. Navigate to the Tools section
2. Select the calculator you need from the categories
3. Enter your values
4. See instant results
No registration, no payment, and no advertisements interrupt the experience. Calculators work on mobile and desktop equally well.
AIVEXA's goal is to make these everyday tools accessible to everyone in India — whether you are a student, a business owner, a healthcare professional, or simply someone who needs a quick, reliable calculation.