Free Online Calculators & Tools

Calculate your monthly mortgage payments with taxes, insurance, PMI, HOA, extra payments, and amortization breakdown. Supports USD, GBP, CAD, and NPR currencies.

Estimate monthly payments, lump-sum maturity costs, and bond present values for any loan type. Visualize full amortization schedules and compare interest methods side by side.

Calculate your exact monthly car payment including trade-in equity, cash incentives, sales tax, title fees, and optional GAP insurance. See the full loan breakdown before you sign.

Calculate simple and compound interest for savings accounts, CDs, credit cards, or loans. See how compounding frequency affects your wealth.

Calculate the monthly payment needed to pay off any debt. Determine payoff timeline or required payment amount for credit cards and loans.

Plan your future retirement savings with our advanced planner. Includes Social Security, inflation, 401(k), IRA, and Monte Carlo simulation.

View a detailed month-by-month amortization schedule of your loan's principal and interest payments. See the impact of extra payments.

Project your investment growth and solve for any variable — contribution amount, required return rate, starting capital, or time horizon — with year-by-year accumulation schedules.

See how the value of money has changed over time due to inflation. Calculate purchasing power loss using official CPI data.

Professional-grade financial calculator for Time Value of Money (TVM), Net Present Value (NPV), Internal Rate of Return (IRR), and lease vs buy analysis.

Estimate your 2026 income taxes across US, India, UK, Canada, and Nepal. Compare old vs new tax regimes, handle RRSP/401k/ISA deductions, and export professional tax reports.

Calculate how your savings grow with compound interest. See the impact of regular monthly contributions and compounding frequency on your long-term wealth.

Convert your annual salary to hourly, weekly, bi-weekly, and monthly rates. Calculate net take-home pay after taxes and deductions.

Determine the effective interest rate of a loan or investment in USD, GBP, CAD, or NPR. Convert APR to APY and solve for missing rates globally.

Calculate total price including sales tax in USD, GBP, CAD, or NPR. Reverse sales tax calculator to find pre-tax amount from total receipt globally.

Calculate your future 401(k) balance based on salary, contribution rate, employer match, and investment returns. Includes catch-up contributions for over-50s.

Plan your UK tax-free savings with our ISA calculator. Supports Cash ISA and Stocks & Shares ISA with annual allowance tracking.

Calculate your Canadian TFSA growth and track your contribution room. Optimize your tax-free investment strategy.

Calculate your Body Mass Index (BMI) instantly. Get your BMI score, WHO classification, and personalized healthy weight range recommendations.

Calculate your daily calorie needs using Mifflin-St Jeor or Katch-McArdle. Supports metric and imperial units, gender-aware calorie floors, goal-specific macro ratios, and a full macronutrient breakdown.

Estimate your body fat percentage using the US Navy Method. Track lean mass vs fat mass for better health insights.

Calculate your Basal Metabolic Rate (BMR) - calories burned at complete rest. Understand your metabolism and total daily energy expenditure.

Calculate your ideal body weight based on height and body frame. Compare multiple formulas and find your personalized healthy weight target.

Calculate your running pace, finish time, or race distance. Get race predictions for 12 distances, splits, and pace in 6 speed units. Supports km and mile inputs with hh:mm:ss time format.

Track your pregnancy progress by week and day. Calculate current trimester, estimated fetal growth, and key milestone dates.

Estimate your baby's conception date using your due date, last menstrual period, or ultrasound scan date. Identify your fertile window and ovulation day for accurate pregnancy dating.

Calculate your baby's estimated due date using last menstrual period, ultrasound date, conception date, or IVF transfer date. Supports custom cycle lengths and multiple pregnancies. Track pregnancy progress.

Powerful scientific calculator for complex mathematical operations. Supports trigonometry, logarithms, exponentials, memory functions, and degree/radian modes.

Perform arithmetic operations with fractions and mixed numbers. Get step-by-step solutions and automatic simplification for learning.

Solve any percentage problem: find percentage of a number, calculate percentage increase/decrease, find what total a value belongs to, compute percentage difference between two values, and more.

Generate truly random numbers within any range. Perfect for dice rolls, raffles, random sampling, gaming, and statistical research.

Solve any triangle: input 3 values (sides/angles) and get missing sides, angles, area, perimeter, and height. Supports right triangles and Pythagorean theorem.

Calculate standard deviation (population and sample), variance, mean, sum, and count for any data set. Visualize data distribution.

Calculate your exact age in years, months, and days. Track upcoming birthdays, total days lived, and age in weeks, hours, and minutes.

Calculate date differences, add or subtract days from any date, find business days (excluding weekends), and calculate project deadlines.

Add or subtract time durations, convert between time formats (hours:minutes:seconds), and calculate total work hours or elapsed time.

Track work hours, breaks, and overtime for payroll. Calculate weekly, bi-weekly, or monthly totals with decimal hour conversion.

Calculate your semester GPA and cumulative GPA. Support for weighted/unweighted grades, credit hours, and target GPA solver.

Calculate your current course grade and determine what you need on your final exam to achieve your target grade. Weighted assignment categories supported.

Estimate concrete volume in cubic yards, cubic meters, or bags. For slabs, footings, columns, walls, and holes. Includes waste factor.

Professional-grade IPv4 subnet calculator featuring network analysis, subnet splitting, binary visualization, IP classification, and CIDR/mask conversion. Perfect for network engineers and CCNA preparation.

Generate cryptographically strong, unique passwords. Customizable length, character sets (uppercase, lowercase, numbers, symbols). Password strength indicator.

Convert between various units of measurement: length, weight, temperature, volume, area, speed, time, and more. Instant, accurate conversions.

Compare two pieces of text and see the differences highlighted instantly. Perfect for code review, document comparison, and plagiarism checking.