Interactive compound interest calculator with chart, regular contributions, multiple compounding frequencies, and inflation adjustment. See year-by-year growth.

#compound interest#investment#savings

🎓

GPA Calculator

Calculate your GPA on a 4.0 scale from letter grades (A, B+, C...) and credit hours. US grading scale.

#gpa#grade#calculator

🥗

Calorie & Macro Calculator

Calculate your daily calorie needs and macronutrient breakdown based on weight, height, age, and fitness goal.

#calorie#macro#bmi

🧮

Scientific Calculator

Evaluate advanced mathematical expressions: trigonometry, logarithms, powers, roots, and constants.

#calculator#math#scientific

🏠

Loan Amortization Calculator

Calculate detailed amortization schedules, compare Amortized vs Flat methods, see extra payment savings. Yearly principal/interest chart, CSV export.

#loan#mortgage#amortization

💼

Freelance Rate & Project Quote Calculator

Calculate your true freelance hourly rate: input desired net salary, business expenses, time off, and tax rate. Get your break-even rate, recommended rate with buffer, instant project quotes, and a downloadable rate justification summary.

#freelance#rate#calculator

📈

Inflation & Purchasing Power Calculator

Calculate the purchasing power of money across decades using historical CPI data (1950–2026). See what your money could buy then vs. now, compare against gold, and discover how much value has been lost to inflation.

#inflation#cpi#money

💼

Meeting Cost Calculator

Real-time clock showing how much your meeting is costing the company right now. Enter headcount and average salary.

#meeting#cost#salary

📊

XSMN Lô Gan Frequency Tracker

Analyze lottery number frequency from XSMN results: find "lô gan" (long-overdue numbers), hot numbers, and cold numbers. For statistics and entertainment only.

#lô gan#xổ số miền nam#tần suất lô đề

📊

Statistics Calculator

Full statistics calculator: mean, median, mode, standard deviation, variance, quartiles (Q1–Q3), IQR, and outlier detection. Enter numbers separated by commas or spaces.

#statistics#mean#median

💳

Debt Payoff Calculator

Compare Snowball (pay smallest balance first) vs Avalanche (pay highest APR first) debt payoff strategies. See months to debt-free, total interest paid, and payoff order.

#debt payoff#snowball method#avalanche method

🧾NEW

VAT & Sales Tax Calculator

Instantly calculate VAT or sales tax — add tax to a net price (exclusive) or remove tax from a gross price (inclusive). Works for UK 20% VAT, US state taxes, EU VAT, GST, and any custom rate.

#VAT calculator#sales tax calculator#add VAT

💼NEW

Salary Calculator

Convert between hourly, daily, weekly, monthly and annual salary instantly. Calculate your take-home pay, find your hourly rate from your annual salary, or convert any wage period.

#salary calculator#hourly to salary#annual salary calculator

Browse other categories

💻Developer41 🔄Converter21 🔒Security10 ⚡Generator10 📝Text18 🖼️Image36 💪Health & Fitness63 🌐Network4 📱Social Media27 📄PDF20 🎬Video & Audio4 👗Fashion & Size5 ✨ View all tools