Calculators Tools
Numbers, units, dates and finance.
GST Calculator
Add or remove GST from an amount.
VAT Calculator
Add or remove VAT at any rate.
EMI Calculator
Monthly loan EMI and interest.
Income Tax Calculator
Estimate salary tax across configurable slabs.
Loan Calculator
Payments and interest over years.
Percentage Calculator
Work out percentages fast.
Discount Calculator
Sale price and savings.
Tip Calculator
Tip and split the bill.
Age Calculator
Exact age in years, months, days.
Date Difference Calculator
Time between two dates.
BMI Calculator
Body Mass Index from height & weight.
Unit Converter
Convert length, weight and more.
Temperature Converter
Celsius, Fahrenheit and Kelvin.
Storage Converter
Bytes, KB, MB, GB, TB and more.
Speed Converter
km/h, mph, knots and m/s.
Binary Calculator
Binary arithmetic and bitwise ops.
Hex Calculator
Hexadecimal arithmetic in all bases.
SIP Calculator
Project monthly SIP investment growth.
FD Calculator
Fixed deposit maturity and interest.
RD Calculator
Recurring deposit maturity value.
Compound Interest Calculator
Compound growth at any frequency.
Simple Interest Calculator
Interest and maturity, the simple way.
Profit Margin Calculator
Margin and markup from cost & price.
Break-Even Calculator
Units and revenue to break even.
Sales Tax Calculator
Add or remove sales tax at any rate.
Commission Calculator
Commission and total payout.
ROI Calculator
Return on investment, annualized.
BMR Calculator
Basal metabolic rate (Mifflin-St Jeor).
Calorie Calculator
Daily calorie targets by activity.
Water Intake Calculator
Daily water needs by weight.
Body Fat Calculator
Body fat % via the U.S. Navy method.
Ideal Weight Calculator
Healthy weight range from height.
Currency Converter
Live exchange rates, major currencies.
Fuel Cost Calculator
Trip fuel cost by distance & mileage.
Electricity Bill Calculator
Estimate energy cost from usage.
Time Zone Converter
Convert times across world zones.
Working Days Calculator
Business days between two dates.
Countdown Timer
Live countdown to any date & time.
Stopwatch
Online stopwatch with lap times.
Leap Year Checker
Check if any year is a leap year.
Pregnancy Calculator
Gestational age and trimester.
Due Date Calculator
Estimate your baby's due date.
Ohm's Law Calculator
Solve V, I, R and P from any two.
Voltage Calculator
Find voltage from current & resistance.
Watt Calculator
Power from voltage and current.
Resistance Calculator
Resistance from voltage and current.
Frequency Converter
Hz, kHz, MHz, GHz and period.
Scientific Calculator
Trig, logs, powers, roots and more.
Matrix Calculator
Multiply, invert and find determinants.
Prime Number Checker
Test primality and factorize.
GCD Calculator
Greatest common divisor of numbers.
LCM Calculator
Least common multiple of numbers.
Factorial Calculator
Compute n! for large integers.
Equation Solver
Solve quadratic equations.
Statistics Calculator
Mean, median, mode and deviation.
Permutation Calculator
nPr permutations of items.
Combination Calculator
nCr combinations of items.