Free Online Number Tools
Crunch everyday numbers with calculators for percentages, BMI, age, dates, and random values — ideal for students and quick professional checks.
13 tools
All Number Tools
Simple Calculator
Perform basic arithmetic calculations.
Age Calculator
Calculate age from a birthdate.
Date Difference Calculator
Calculate the difference between two dates.
Future Date Calculator
Calculate future or past dates by adding or subtracting days, months, or years.
BMI Calculator
Calculate Body Mass Index (BMI).
Percentage Calculator
Calculate percentages and ratios.
Currency Converter
Convert between different currencies.
GST Calculator
Calculate GST (Goods and Services Tax).
EMI Calculator
Calculate Equated Monthly Installment (EMI) for loans.
SIP & Lumpsum Calculator
Calculate returns on your SIP or Lumpsum investments.
PPF Calculator
Calculate returns on your Public Provident Fund (PPF) investments.
FD Calculator
Calculate returns on your Fixed Deposit (FD) investments.
Income Tax Calculator
Calculate your income tax liability.
Number Tools FAQ
Quick answers for people browsing this category. Open any tool above when you are ready to run a conversion, lookup, timer, or typing session in your browser—no install required.
- Do calculators replace spreadsheets?
- They excel at quick single-purpose math; use spreadsheets for complex models.