17 tools in this category

EMI Calculator
Calculate Equated Monthly Installments for loans. See full amortization breakdown.
Percentage Calculator
Calculate percentages, percent change, and reverse percentage problems instantly.
Scientific Calculator
Full expression calculator with trig, logs, powers, constants, and degree/radian modes plus a session history.
SIP Calculator
Project systematic investment plan growth with monthly compounding, returns breakdown, and a yearly value table.
GST Calculator
Add or reverse-calculate GST at standard slabs with CGST/SGST split for intra- and inter-state supplies.
GPA Calculator
Compute your semester GPA on the 4.0 scale with unlimited courses, credits, and letter grades.
Credit Card Validator (Luhn)
Validate card numbers with the Luhn checksum, detect the network (Visa, Mastercard, Amex…), and flag length anomalies.
Compound Interest Calculator
Project savings growth with monthly contributions, custom compounding frequency, and live future-value math.
VAT / GST / Sales Tax Calculator
Add or remove tax from any amount — supports back-calculation and common worldwide rates in one tap.
Tip & Bill Split Calculator
Calculate tips, split bills between friends, and round the total — per-person amounts update live.
Statistics Calculator
Mean, median, mode, standard deviation, variance, and range for any list of numbers — instant as you type.
Discount Calculator
Apply single or stacked discounts to a price and see the final price, total savings, and effective discount.
Take-Home Salary Calculator
Estimate net salary from gross with your own tax, social, and pension rates — monthly, weekly, and yearly views.
Unit Price Comparison
Compare two products by price per gram, liter, or piece to instantly find the better value.
Random Number Generator
Generate random numbers in any range with optional no-duplicates — for draws, games, and sampling.
Loan Offer Comparison
Compare two loan offers side by side — monthly payment, total cost, and which one actually saves you money.
Invoice Generator
Design invoices your way: 5 templates, live A4 preview, drag-and-drop line items, logo, accent colors, tax & discounts — print or export, nothing stored.