Free Online Calculators
A collection of practical calculators for everyday and specialist needs - convert 100+ measurement units, get live exchange rates for 86+ currencies, calculate percentages and discounts, run scientific calculations, and plan solar panel systems.
8
Live
10
Coming
Available Now- ready to use
Online Calculator
Fast, clean calculator for everyday arithmetic
Unit Converter
Convert 100+ units across 12 measurement categories
Percentage Calculator
Calculate discounts, tips, markups, and percentage change
Scientific Calculator
Casio-style scientific calculator with trig, log, and more
Currency Converter
Live exchange rates for 86+ currencies
Solar Load Calculator
Calculate appliance loads for solar panel sizing
Solar System Sizer
Find the right solar panel system size for your home
Solar Cost Calculator
Estimate total solar panel system installation cost
Coming Soon
In development - available shortly.
Age Calculator
Calculate exact age in years, months, days, and hours
BMI Calculator
Calculate your BMI - metric and imperial units
EMI Calculator
Calculate loan EMI, total interest, and payment schedule
GST / Sales Tax Calculator
Add or remove GST/sales tax from any amount instantly
CGPA to Percentage Calculator
Convert CGPA to percentage for Pakistan, India, and US scales
Date Difference Calculator
Find days, weeks, months between any two dates
Discount Calculator
Calculate sale price, savings, and discount percentage
Compound Interest Calculator
Calculate compound interest with yearly growth chart
Tip Calculator
Calculate tip amount and split the bill between friends
Time Zone Converter
Convert time between any world time zones instantly