Age Calculator
Calculate age in years, months and days.
FREE • SIMPLE • INSTANT
Everyday calculations,
made easier.
Use practical online calculators for study, shopping, finance and everyday planning. No sign-up required.
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Choose a tool below, enter your values and get a result instantly. Each calculator includes a short explanation to help you understand the calculation.
OUR TOOLS
All calculators
Percentage Calculator
Find what percentage one number is of another.
GST Calculator
Calculate GST amount and total price.
Discount Calculator
Find the savings and final sale price.
EMI Calculator
Estimate monthly loan instalments.
CGPA Calculator
Calculate a simple average of semester GPAs.
SGPA Calculator
Calculate SGPA using grade points and credits.
Attendance Calculator
Calculate attendance percentage.
Date Calculator
Count days between two dates.
Average Calculator
Find the average of a list of numbers.
Simple Interest
Calculate simple interest and total amount.
Unit Converter
Convert common length and weight units.
SMARTCALC TOOL
Calculator
Enter your values to calculate.
LEARN THE BASICS
Calculation guides
How to calculate a percentage
To find what percentage A is of B, divide A by B and multiply the result by 100. For example, 25 out of 100 is 25%.
How age is calculated
Age is the time between a person's date of birth and a chosen date. A complete age calculation accounts for whether the birthday has occurred in the current year.
Understanding loan EMI
EMI is a fixed periodic payment that includes principal and interest. The estimate depends on the loan amount, annual interest rate and repayment duration.
What are CGPA and SGPA?
SGPA generally represents performance in one semester, while CGPA represents cumulative performance across semesters. Follow your institution's official calculation rules.
ABOUT
About SmartCalc
SmartCalc provides free, simple online calculators for everyday tasks, study, shopping and general planning. The tools run in your browser and do not require an account.
CONTACT
Contact
For questions or corrections, please use the contact method provided by the website owner.
PRIVACY
Privacy Policy
This standalone starter processes calculator inputs in your browser and does not send them to a server or store them in an account. The hosting provider may process basic technical logs. If you later add analytics, advertising, cookies, forms or other third-party services, update this policy and add any legally required consent controls before launch.
TERMS
Terms & Conditions
These tools are for general information and learning. Results are estimates and are not financial, tax, legal, medical or academic advice. Calculation and rounding rules may differ between institutions and service providers. Verify important results with the relevant official source.