Calculators (Finance, Health, Math, Tech)
Mortgage amortization, compound interest, ROI, BMI, calorie split, date math, subnetting, and unit converters.
All Calculators (Finance, Health, Math, Tech)
Select any calculators utility below to process your files 100% locally in your browser memory.
Mortgage & Home Loan Calculator
Calculate monthly mortgage payments, interest paid, and total loan cost with custom interest rates, down payments, taxes, and insurance.
Compound Interest Calculator
Calculate compound interest growth with regular monthly deposits, annual returns, and compounding frequencies. Includes visual growth breakdown.
Percentage Calculator (4-in-1)
Free multi-mode percentage calculator: calculate percent of a number, percentage differences, rate of increase/decrease, and reverse fractions.
Body Mass Index (BMI) Calculator
Calculate your Body Mass Index (BMI) and WHO classification with metric and imperial units. Includes healthy weight target range and visual scale.
Date Difference & Day Counter
Calculate exact days between two dates, business working days, weekend count, and add or subtract days/weeks/years from any calendar date.
Chronological Age & Milestone Calculator
Calculate your exact chronological age in years, months, days, hours, and seconds. View next birthday countdown and astrological zodiac sign.
Discount & Sale Savings Calculator
Calculate discounted prices, stacked promotional discounts, dollar savings, and estimated sales tax. Visual savings breakdown and itemized receipt.
Sales Tax, VAT & GST Calculator
Calculate sales tax, VAT, or GST with country presets (US, UK, EU, India, Australia, Canada). Add tax to net price or reverse calculate tax from total.
Freelance Hourly & Day Rate Calculator
Calculate your ideal freelance hourly rate and day rate based on target income, business expenses, billable hours, vacation time, and taxes.
Calorie & Macro Split Calculator (BMR & TDEE)
Calculate daily calorie needs, Basal Metabolic Rate (BMR), and Total Daily Energy Expenditure (TDEE). Includes protein, carb, and fat macro splits.
Daily Water Intake & Hydration Calculator
Calculate your ideal daily water intake based on body weight, exercise duration, and climate. Hourly hydration schedule and 8-ounce glass counter.
Auto Loan & Vehicle Finance Calculator
Calculate monthly car loan payments, total interest, sales tax, and trade-in equity. Loan terms from 24 to 84 months with complete purchase breakdown.
Scientific Calculator (Trigonometry, Log, Powers)
Perform advanced scientific calculations with trigonometry (sin, cos, tan), logarithms, square roots, factorials, and powers. DEG/RAD switch and history.
Aspect Ratio & Resolution Calculator
Calculate aspect ratios and proportional dimensions (16:9, 4:3, 1:1, 9:16, 21:9). Real-time geometric scale preview and proportional multiplier table.
BMR & TDEE Calculator
Calculate your Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE). Supports Mifflin-St Jeor & Harris-Benedict formulas, cutting/bulking.
Inflation & Purchasing Power Calculator
Calculate compound inflation, future purchasing power of your money, and equivalent cost of goods over time with yearly compounding tables.
IP Subnet & CIDR Calculator
Calculate IPv4 network addresses, broadcast addresses, usable host ranges, wildcard masks, and CIDR prefix notations with binary breakdown.
Statistics Calculator
Compute comprehensive descriptive statistics instantly. Calculate mean, median, mode, sample and population standard deviation, variance, quartiles, and.
Fraction Simplifier & Calculator
Simplify fractions to lowest terms instantly using GCD. Perform fraction addition, subtraction, multiplication, and division with step-by-step reduction.
2D & 3D Geometry Calculator
Calculate area, perimeter, volume, surface area, and diagonals for circles, rectangles, triangles, spheres, cylinders, cones, and prisms.
Time Card Calculator
Track weekly work shifts, unpaid lunch breaks, daily and weekly overtime (1.5x/2.0x), and estimate total gross earnings with instant CSV export.
World Clock & Timezone Converter
Compare local time across global cities and timezones simultaneously. Identify overlapping business working hours and date differences for international.
Bandwidth & Download Time Calculator
Calculate file download and upload transfer durations based on network speed (Mbps/Gbps) with real-world TCP/IP packet overhead adjustment.
SIP Calculator (Systematic Investment Plan)
Calculate expected maturity wealth and interest gains from systematic mutual fund investments. Includes step-up SIP compounding and annual growth schedule.
401(k) & Retirement Savings Calculator
Calculate your retirement nest egg with employer matching contributions, salary growth, compounding interest, and safe monthly drawdown projections.
Debt Payoff Calculator (Snowball vs. Avalanche)
Compare Debt Avalanche and Debt Snowball repayment strategies. Calculate total interest saved, debt-free milestone dates, and payoff schedules.
ROI Calculator (Return on Investment & CAGR)
Calculate Return on Investment (ROI), annualized Compound Annual Growth Rate (CAGR), and investment profit/loss multipliers with zero data collection.
Profit Margin & Markup Calculator
Calculate gross profit margin, markup percentage, operating expenses, and net profit margins instantly. Optimize product pricing and retail margins.
Break-Even Point Calculator
Calculate unit and dollar break-even points, contribution margin ratios, and sales targets required to achieve desired net business profits.
Payroll & Paycheck Calculator
Estimate net take-home paycheck earnings with federal income tax brackets, FICA (Social Security & Medicare), state taxes, and 401(k) pre-tax deductions.
Body Fat Calculator (US Navy & BMI Methods)
Calculate body fat percentage, lean body mass, and fat mass using the US Navy tape method and BMI formula. Includes ACE standards and target goal.
Target Heart Rate Calculator (5 Training Zones)
Calculate maximum heart rate (MHR) and 5 cardiovascular exercise training zones using the Tanaka, Karvonen (HRR), and Fox formulas.
Pregnancy Due Date & Gestational Timeline Calculator
Calculate your estimated due date (EDD) by Last Menstrual Period (LMP), conception date, IVF transfer, or ultrasound scan. Track trimesters and milestones.
2026 Salary & Take-Home Tax Calculator
Calculate your 2026 take-home pay, federal tax brackets, FICA, state tax, and 401(k) deductions online. 100% private in-browser salary calculator.