All Online Tools Directory

Mortgage Calculator

Estimate your monthly home mortgage payments, principal, interest, taxes, and amortization.

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Compound Interest Calculator

See how your savings grow over time with daily, monthly, or yearly compounding interest.

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Credit Card Payoff Calculator

Determine how long it will take to pay off credit card balances and how to minimize interest.

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Loan Calculator

Calculate monthly loan payments, total interest costs, and payoff timelines with extra payments.

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Retirement Calculator

Calculate your projected retirement nest egg and how much you can safely withdraw annually.

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Inflation Calculator

Adjust historical dollar amounts for inflation and measure changes in buying power.

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Savings Goal Calculator

Calculate the monthly savings needed to hit your target financial goal by a specific date.

Net Worth Calculator

Sum your assets and liabilities to calculate and track your current net worth.

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FIRE Calculator

Find your Financial Independence, Retire Early number and see how many years remain.

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Coast FIRE Calculator

Calculate the savings needed today to coast to a comfortable standard retirement without saving more.

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Rule of 72 Calculator

Calculate how long it takes to double your money at various fixed annual interest rates.

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Investment Fee Calculator

See how investment fees and expense ratios impact your long-term portfolio growth.

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Investment Return Calculator

Project future investment values, accounting for recurring contributions, rates of return, and inflation.

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Debt Snowball Calculator

Plan your debt payoff using the snowball method, targeting the smallest balances first for psychological wins.

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Debt Avalanche Calculator

Calculate your debt payoff using the avalanche method, prioritizing the highest interest rates first to save money.

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Emergency Fund Calculator

Find how much to save to cover 3 to 12 months of essential living expenses.

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Auto Loan Calculator

Calculate monthly car loan payments, total interest costs, sales tax, and trade-in adjustments.

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Student Loan Calculator

Estimate monthly student loan payments, total interest, and outline income-driven options.

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Mortgage Affordability Calculator

Find out how much house you can afford based on income, monthly debts, and down payments.

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Down Payment Calculator

Calculate target down payment amounts, review conventional limits, and estimate private mortgage insurance (PMI).

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Rent vs Buy Calculator

Compare the net costs of renting a home versus buying one over various investment timelines.

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Refinance Calculator

Estimate monthly and lifetime savings from refinancing your current mortgage to a lower rate.

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Property Tax Calculator

Calculate property tax totals using assessed values, tax rates, or mill rates, with standard exemptions.

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Home Equity Calculator

Estimate your home equity and calculate borrowing limits for Home Equity Lines of Credit (HELOC).

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Closing Cost Calculator

Estimate total buyer and seller closing costs associated with home purchases.

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Rent Increase Calculator

Track rent changes over time, calculate lease percentages, and outline five-year projections.

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HOA Fee Calculator

Estimate the long-term impact of Homeowners Association (HOA) fees on housing costs.

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Rental Property ROI Calculator

Calculate cash flow, cap rate, cash-on-cash return, and net ROI for real estate investments.

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Federal Tax Calculator

Estimate US federal income taxes, tax brackets, standard deductions, and tax rates.

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Paycheck Calculator

Estimate take-home pay after federal withholding, state taxes, FICA, and pre-tax deductions.

Self-Employment Tax Calculator

Estimate self-employment taxes (15.3%) and tax deductions for sole proprietors and LLCs.

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Capital Gains Tax Calculator

Estimate short-term and long-term capital gains tax on investments and assets.

1099 Tax Calculator

Calculate taxes owed on contractor income, business expenses, and quarterly payment estimates.

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Social Security Tax Calculator

Calculate social security and medicare withholding limits for employees and contractors.

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Currency Converter

Convert currencies using live, real-time exchange rates. Supports major world currencies.

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Loan Comparison Calculator

Compare monthly payments, interest rates, and total cost of up to three loan offers side-by-side.

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Tax Withholding Calculator

Estimate your paycheck tax withholding, federal and state taxes, and net take-home pay.

BMI Calculator

Calculate Body Mass Index (BMI) and find your healthy weight range.

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Calorie Calculator

Estimate daily calorie intake targets for weight loss, maintenance, or muscle gain.

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Macro Calculator

Calculate daily protein, carbohydrate, and fat targets based on caloric goals.

Body Fat Calculator

Estimate body fat percentage using US Navy body circumference methods or BMI metrics.

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Water Intake Calculator

Calculate custom daily hydration targets based on body weight, climate, and active levels.

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Ideal Weight Calculator

Calculate target weight ranges using major clinical formulas and BMI references.

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BMR Calculator

Calculate Basal Metabolic Rate (BMR) to learn baseline calorie burn levels.

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TDEE Calculator

Calculate Total Daily Energy Expenditure (TDEE) to learn actual daily calorie burn.

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Running Pace Calculator

Calculate run times, target paces, or race distances, and review milestone splits.

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One Rep Max Calculator

Estimate your lifting one-rep max (1RM) and review training percentages.

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Protein Intake Calculator

Calculate daily protein targets based on active levels, body weight, and body goals.

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Lean Body Mass Calculator

Estimate lean body mass (LBM) and body fat mass using Boer or James equations.

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GPA Calculator

Calculate semester or cumulative GPA based on course grades and credit hours.

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CGPA Calculator

Convert semester GPAs into a cumulative grade point average (CGPA) score.

Grade Calculator

Calculate weighted grades and find requirements for upcoming exams to hit target marks.

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Percentage Grade Calculator

Convert point scores (earned vs total) to percentages, letter grades, and GPA index scales.

Exam Score Calculator

Calculate test percentages and see how many questions you can miss to pass.

Reading Time Calculator

Estimate reading and speaking durations for documents based on word count.

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Study Timer

A custom Pomodoro study timer to track focus sessions and breaks.

Inches to CM Converter

Convert inches to centimeters and centimeters to inches instantly.

KG to LBS Converter

Convert kilograms to pounds, pounds to kilograms, and view stones weight.

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Celsius to Fahrenheit

Convert Celsius to Fahrenheit, Fahrenheit to Celsius, and Kelvin values.

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Miles to KM Converter

Convert miles to kilometers and kilometers to miles.

Height Converter

Convert heights between centimeters, meters, and feet/inches.

Weight Converter

Convert weights across kilograms, pounds, ounces, grams, and stones.

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Age Calculator

Calculate your exact age in years, months, and days, and view next birthday countdowns.

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Date Calculator

Add or subtract days, weeks, months, or years to/from any calendar date.

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Days Between Dates

Calculate the total days, weeks, and months between two calendar dates.

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Time Duration Calculator

Calculate the exact hours, minutes, and seconds between two clock times.

Countdown Calculator

Create a live, ticking countdown timer to any target calendar date and time.

Business Days Calculator

Calculate the number of business days between two dates, excluding weekends and holidays.

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Percentage Calculator

Calculate percentage values, percentages of totals, and percentage increases/decreases.

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Tip Calculator

Calculate dining tips, split bills among dining parties, and round up totals.

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Discount Calculator

Calculate savings and final sale prices using discount percentages.

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Sales Tax Calculator

Calculate the final purchase price after adding regional sales tax rates.

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Split Bill Calculator

Split shared house bills, group expenses, or checks, with individual adjustments.

Word Counter

Count words, characters, sentences, paragraphs, reading speed, and keyword density.

Character Counter

Count total characters, numbers, letters, spaces, and punctuation in your text.

Sentence Counter

Count sentences, paragraphs, average word limits, and estimate Flesch readability indexes.

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Text Case Converter

Convert text case formats between UPPERCASE, lowercase, Title Case, camelCase, and more.

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Text Sorter

Sort lines of text alphabetically, by length, or in random order.

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Text Reverser

Reverse characters, mirror individual words, or reverse list lines.

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Remove Duplicate Lines

Clean list text and remove duplicate lines, with case-sensitive filtering options.

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Password Generator

Generate secure, random passwords with custom lengths and character settings.

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Random Number Generator

Generate random numbers within custom ranges, shuffle list items, or roll virtual dice.

Invoice Generator

Create professional, print-friendly business invoices directly in your browser.

Timesheet Calculator

Calculate daily and weekly work hours, overtime rates, and gross wages.

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Work Hours Calculator

Calculate overall work hours across weekly, monthly, and annual calendars.

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Overtime Calculator

Calculate regular pay, overtime pay rates, and effective hourly wage rates.

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Salary Calculator

Convert salary totals into hourly, daily, weekly, bi-weekly, monthly, and annual amounts.

Hourly Rate Calculator

Calculate minimum hourly rates based on salary conversions or desired freelancer income target budgets.

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PTO Calculator

Calculate paid time off (PTO) balances, accrual dates, and year-end projections.

Meeting Cost Calculator

Estimate the financial cost of business meetings using a live cost ticker.

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Family

Pregnancy Due Date Calculator

Estimate pregnancy due dates and track development milestones.

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Family

Ovulation Calculator

Estimate ovulation dates, fertile windows, and track monthly cycles.

Family

Child Height Predictor

Estimate adult heights for children using parental height stats and childhood heights.

Image Resizer

Resize images (JPG, PNG, WebP) to custom pixel dimensions or preset sizes client-side.

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Image Compressor

Compress images and reduce file sizes with live ratio previews and quality controls.

JPG to PNG Converter

Convert JPG images to PNG format client-side, preserving layout colors.

PNG to JPG Converter

Convert PNG images to JPG format, with quality controls and custom background fills.

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Image Cropper

Crop images with preset ratios (16:9, 1:1, 4:3) and custom crop selections.

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PDF Merge

Merge multiple PDF documents into a single PDF file client-side.

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PDF Split

Split single PDF documents into individual pages or custom page ranges.

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PDF Compress

Reduce PDF file sizes by optimizing object streams and metadata structures.

PDF to JPG Converter

Convert PDF pages into individual JPG image files locally.

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Image to PDF Converter

Convert image files (JPG, PNG, WebP) into a compiled PDF document.

Screen Ruler

A calibrated on-screen ruler with mm, cm, and inch scales. Set your screen size for accurate real-world measurements.