Math, Science & Engineering
A complete collection of scientific and engineering calculation tools for students, educators, professionals, and enthusiasts. From basic unit conversions to advanced physics simulations, financial calculations, and specialized engineering tools. Solve equations, convert measurements, calculate loan payments, simulate physical phenomena, balance chemical equations, design electrical circuits, and estimate construction costs—all with accuracy and ease.
Split shared expenses among group members and instantly see who owes whom with the fewest transactions to settle up.
Calculate how much you need for a down payment on a home, see monthly mortgage impact, compare scenarios, and check PMI requirements.
Calculate your net worth by listing all assets and liabilities. Get instant financial health analysis with debt-to-asset ratio and visual breakdown.
Calculate how many units you need to sell to cover all costs and start making profit with instant break-even analysis.
Calculate how inflation changes the value of money over time using real CPI data from the World Bank for 49+ countries.
Calculate profit margin, markup, and selling price from cost and revenue. Supports gross, operating, and net margin types.
Create a debt repayment plan using Avalanche or Snowball methods. Compare strategies, see your debt-free date, and track interest savings.
Calculate how much to save regularly to reach your financial goal. Plan your savings with interest rates, deposit frequencies, and visual growth charts.
Estimate how much you need to save for retirement based on your age, income, expenses, and investment returns.
Calculate Value Added Tax or Goods & Services Tax instantly. Add or remove VAT from any amount with country-specific rates.
Calculate return on investment, net profit, and annualized ROI instantly. Compare multiple investments side by side.
Calculate sale prices, discount amounts, and total savings instantly. Stack multiple discounts and add tax for accurate final prices.