Prime Number Checker

%

Percentage Calculator

Calculate percentages, changes, and find what percent one number is of another

⚖️

Unit Converter

Convert length, weight, temperature, and more

🎲

Random Number Generator

Generate random numbers within any range you set

⚕️

BMI Calculator

Calculate your Body Mass Index with metric or imperial units

🧾

Tip Calculator & Bill Splitter

Calculate tip amount and split the bill among any group

🔢

Number Base Converter

Convert numbers between binary, octal, decimal, and hexadecimal

🏛️

Roman Numeral Converter

Convert numbers to Roman numerals and back (1–3999)

💰

Compound Interest Calculator

Calculate compound interest with year-by-year breakdown

🏷️

Discount Price Calculator

Find final price, discount percentage, or original price

📊

Statistics Calculator

Calculate mean, median, mode, standard deviation, and more

🏠

Loan & Mortgage Calculator

Calculate monthly payments, total interest, and full amortization schedule

📐

Aspect Ratio Calculator

Calculate missing width or height from an aspect ratio. Supports 16:9, 4:3, and custom ratios

🎓

GPA Calculator

Calculate semester and cumulative GPA from courses, grades, and credit hours

🔥

Calorie & BMR Calculator

Calculate your BMR and daily calorie needs based on activity level and goal

🏦

Loan EMI Calculator

Calculate monthly EMI, total interest, and repayment for any loan.