Calculators & Converters
All tools in this category process files 100% inside your web browser. Fast, private, and 100% free forever on NexVaani.
Percentage Calculator
Calculate percentages, percentage increase/decrease, and percentage differences with PDF summary reports.
Percentage Increase Calculator
Calculate percentage growth, salary increments, price markups, and relative decline with full formulas.
Discount Calculator
Calculate final sale prices, discount amounts, and savings with optional sales tax inclusion.
Loan EMI Calculator
Calculate monthly loan EMI payments, total interest payable, and full yearly amortization schedules.
Mortgage Calculator
Calculate monthly mortgage payments including principal, interest, property taxes, and home insurance.
ROI Calculator
Calculate Return on Investment (ROI), total net profit, and investment efficiency percentages.
Compound Interest Calculator
Calculate compound interest growth, future investment values, and monthly contribution yields.
Salary to Hourly Calculator
Convert annual salary to hourly wage, monthly pay, bi-weekly paychecks, and daily rates.
Sales Tax Calculator
Calculate total sales tax, final checkout prices, or reverse calculate pre-tax amounts from gross totals.
Margin & Markup Calculator
Calculate gross profit margin, markup percentage, cost of goods, and selling revenue prices.
Currency Converter
Convert global currencies with indicative exchange rates and instant conversion tables.
Profit Margin Calculator
Calculate gross profit margin, markup percentage, revenue, and net profit from unit cost and selling price.
Inflation Calculator
Calculate the erosion of purchasing power and future equivalent value of money based on inflation rates.
Tip & Bill Split Calculator
Calculate restaurant gratuity (15%, 18%, 20%, 25%) and split the total bill evenly among friends.
Fuel Cost Calculator
Calculate total gasoline expense, fuel consumption (liters/gallons), and per-passenger travel costs for road trips.
BMI Health Calculator
Calculate Body Mass Index (BMI) for adults with metric and imperial units, WHO weight categories, and ideal weight targets.
Time Duration Calculator
Calculate elapsed hours, minutes, and days between two times or calendar dates with work hours tracking.
Universal Unit Converter
Convert between metric and imperial units for length, weight, temperature, area, volume, speed, and digital storage.
Length & Distance Converter
Convert length and distance between centimeters, meters, kilometers, inches, feet, yards, and miles.
Weight & Mass Converter
Convert weight and mass between kilograms, grams, milligrams, pounds, ounces, stone, and metric tons.
Temperature Converter
Convert temperature scales between Celsius (°C), Fahrenheit (°F), and Kelvin (K) with instant formula walkthrough.
Random Number Generator
Generate random numbers, rolls, and sequences between any min and max values using Web Crypto API.
SIP Investment Calculator
Calculate maturity wealth, invested capital, and compounding returns for monthly mutual fund SIPs with visual charts.
GST Tax Calculator
Calculate GST amounts (3%, 5%, 12%, 18%, 28%) with forward/reverse calculation and CGST/SGST breakdown.
Loan Prepayment Calculator
Calculate total interest saved and tenure reduction when making extra monthly or yearly lump sum loan prepayments.
Retirement & FIRE Corpus Calculator
Calculate target retirement nest egg and required monthly SIP investment adjusted for inflation and life expectancy.
Home Loan + SIP Recovery Calculator
Calculate how a small monthly SIP investment completely covers and recovers 100% of your home loan bank interest.