✦ 25+ Free Tools & Games · No Sign-up
The Smarter Way to Calculate
Free online calculators for finance, health, math, education, and everyday life. Beautiful design, instant results, works on any device.
25+
Free Tools
8
Categories
0
Sign-up Required
Most Popular
📈
Compound Interest Calculator
See how your investments grow over time with compound interest. Interactive charts, inflation adjustment, year-by-year breakdown.
Finance · #1 Most Used
🧮
Scientific Calculator
Full scientific calculator with trig, logarithms, memory, history, and keyboard support. DEG/RAD mode switching.
Math · Advanced
🍎
Calorie & Macro Calculator
Calculate daily calories (TDEE/BMR) and optimal protein, carbs, fat split based on your fitness goals.
Health · Mifflin-St Jeor
Financial Calculators7 tools
📈
Compound Interest
Calculate how investments grow with compound interest, monthly contributions, and inflation adjustment.
Charts · Inflation
🏠
Mortgage & Loan
Monthly payment, amortization schedule, extra payments, and total interest for any loan.
Amortization · Extra Pay
💳
EMI Calculator
Equated Monthly Installment for home, car, personal, and education loans with presets.
4 Loan Types
💼
Salary Calculator
Convert salary between hourly, weekly, monthly, and annual. Adjust for vacation and holidays.
8 Frequencies
📊
Inflation Calculator
Calculate purchasing power changes using US CPI data from 1913 to 2025.
113 Years of Data
🧾
Tip Calculator
Calculate tips and split bills between any number of people. Quick tip buttons.
Bill Splitting
💱
Currency Converter
Convert 30+ world currencies with live exchange rates. USD, EUR, GBP, RON, JPY, and more.
Live Rates · 30+ Currencies
Health & Fitness3 tools
⚖️
BMI Calculator
Body Mass Index with WHO categories, gender-specific insights, and healthy weight range.
Gender Context · WHO
🍎
Calorie & Macro
Daily calorie needs (TDEE/BMR) and optimal macronutrient split for your goals.
Mifflin-St Jeor
🎂
Age Calculator
Exact age in years, months, days. Birthday countdown, zodiac sign, generation, and life stats.
Zodiac · Countdown
Math & Education4 tools
🧮
Scientific Calculator
Full scientific calculator with trig, logarithms, powers, memory, and keyboard support.
DEG/RAD · History
➗
Fraction Calculator
Add, subtract, multiply, divide fractions with step-by-step solutions and simplification.
Step-by-Step
%
Percentage Calculator
Three calculators: X% of Y, X is what % of Y, and percentage change. Formulas shown.
3 Modes
🎓
GPA Calculator
Semester and cumulative GPA on 4.0 scale. Add courses dynamically with live calculation.
Live Calc · Cumulative
Utility Tools5 tools
📅
Date Calculator
Days between dates, add/subtract days, business day count, detailed time breakdowns.
Business Days
📏
Unit Converter
Convert length, weight, temperature, volume, speed, and area between metric and imperial.
6 Categories
🌍
Time Zone Converter
Convert time between 30+ cities worldwide. Live local time and time difference.
30+ Cities
📱
QR Code Generator
Generate QR codes for URLs, text, email, WiFi, phone. Custom colors, download PNG.
5 Types · No Watermark
⛽
Fuel Cost Calculator
Trip fuel cost, gallons needed, cost per mile, and CO₂ emissions. US and metric units.
CO₂ · Round Trip
Math Games3 games
⚡
Speed Math Challenge
Solve as many math problems as you can in 60 seconds! Streak bonuses, particle effects, 3 difficulty levels.
60 Seconds · Streaks
✖️
Multiplication Trainer
Master times tables 1–12 with visual grid, practice mode, and quiz with star rewards.
3 Modes · Stars
🔮
Number Guessing Game
Find the secret number with hot/cold hints! Animated thermometer, confetti celebrations, star rating.
Hot & Cold · Visual
Pregnancy & Baby1 tool
Shopping & Security2 tools