All Calculators

Measure your aerobic fitness and cardiovascular health with scientifically validated test methods. Track fitness improvements and training progress.

Determine your ideal daily protein intake for muscle building, weight loss, or maintenance. Personalized recommendations based on science-backed formulas for athletes and fitness enthusiasts.

Get personalized daily calorie and macronutrient targets based on your body composition, activity level, and fitness goals. Includes macro breakdown for all diet types.

Estimate your maximum strength for compound lifts and find optimal training percentages for powerlifting and bodybuilding programs.

Perform complex scientific and mathematical calculations with this feature-rich calculator.

A comprehensive tool for converting and calculating in scientific notation.

A versatile tool for converting between various units of measurement.

A suite of tools to perform common statistical tests and determine if your results are statistically significant.

Calculate your annual CO₂ emissions and learn how to reduce your environmental impact.

Model and visualize exponential and logistic population growth scenarios.

Calculate molarity, dilutions, and convert concentration units like g/L, %(w/v), and ppm.

Model the path of a projectile subject to gravity, visualizing its range and height.

A simple tool to log and track your daily water consumption to ensure you stay hydrated.

Determine your suggested daily water consumption based on body weight, exercise intensity, climate conditions, and health goals. Stay properly hydrated for peak performance.

Estimate your body's muscle mass and lean tissue composition with several validated scientific formulas. Track fitness progress and optimize nutrition.

Estimate your daily calorie needs for weight loss, maintenance, or muscle gain based on your body composition and activity level. Includes macro calculator and personalized nutrition goals.

Calculate your target heart rate zones for different types of cardio training including fat burning, aerobic endurance, and high-intensity intervals. Uses accurate Karvonen formula with resting heart rate for personalized training zones. Optimize your cardio workouts and maximize fitness results.

Calculate your target heart rate zones for optimal training. Find the right intensity for fat burning, cardio, and maximum performance.

Calculate your ideal body weight using multiple scientific formulas including Robinson, Miller, Devine, and Hamwi methods. Find your healthy weight range based on height, gender, and age. Perfect for setting realistic weight loss or fitness goals.

Estimate your body fat percentage using the accurate U.S. Navy method with circumference measurements. Calculate body composition for men and women to track fitness progress, set weight loss goals, and monitor health. No calipers needed.

Calculate your Body Mass Index (BMI) to assess your weight status and health risk. Accurate BMI calculator for adults, men, women, and all ages. Get instant results with healthy weight ranges and personalized health insights.

Create a strategic plan to become debt-free faster using avalanche or snowball methods.

Track your progress towards various savings goals, from emergency funds to big purchases.

A private journal to track your daily mood, activities, and energy levels to discover patterns and improve well-being.

Track your sleep patterns, quality, and duration to improve your rest and overall wellness.

Create, manage, and take custom quizzes to test your knowledge on any subject.

A Pomodoro-style timer to help students focus, with tracking by subject.

A powerful tool to capture, organize, and retrieve your thoughts and ideas with folders and tags.

Convert between major global currencies with periodically updated exchange rates.

A versatile tool to convert between various units of measurement, including length, weight, temperature, and more.

Create strong, secure, and random passwords to protect your online accounts.

A simple digital canvas to sketch ideas, create artwork, or just doodle. Features various tools like brushes, shapes, and text.

A suite of tools to make decisions by chance, including a spinner wheel, dice roller, coin flip, and random number generator.

Organize songs into playlists, manage your music library, and simulate a music player interface.

A digital cookbook to organize your recipes, manage ingredients, and plan your meals.

Organize your weekly meals, select recipes from a library, and automatically generate a shopping list.

Track your strength training, cardio, and other fitness activities to monitor progress and stay motivated.

Manage your projects with interactive Kanban boards, track tasks, and visualize your workflow from start to finish.

Capture and organize meeting notes, action items, and key decisions in a structured format.

Create, manage, and print professional expense reports for business reimbursements.

Track billable hours for projects and clients with a live timer and project summaries.

Create and customize professional invoices for your clients. Download or print them instantly.

Schedule your week with a time-blocking calendar to manage your time and visualize your commitments.

Set long-term goals, define actionable milestones, and track your progress toward achieving your ambitions.

Stay focused and manage your work intervals effectively with this customizable Pomodoro timer.

A tool to build better habits, track your progress daily, and visualize your streaks over time.

A simple yet powerful tool to organize your tasks, set priorities, and track your progress to boost productivity.

A comprehensive tool to track your income, expenses, and budgets, helping you manage your money effectively.

An AI-powered tool to generate optimized meta descriptions and keywords for your calculator pages.

Estimate the outcome of negotiating a reduced payoff with creditors, including the tax implications of forgiven debt.

Determines the remaining loan obligation after an asset's sale post-repossession or foreclosure.

Evaluate proposed changes to existing loan terms, such as interest rate reductions or term extensions, and compare them to your original terms.

Generate a complete amortization schedule for any fixed-rate loan, such as a mortgage or auto loan.

Calculate payments for a fixed-rate home equity loan (second mortgage) and compare its costs to a HELOC.

Determine your borrowing capacity, interest-only payments during the draw period, and fully amortized payments for a Home Equity Line of Credit.

Comprehensive mortgage calculator with affordability checker, PMI calculation, scenario comparison, and interactive charts for home loan planning.

Universal loan calculator for personal, auto, student, mortgage, and business loans. Calculate payments, view amortization schedules, and analyze extra payment impact.

Calculate your debt-to-income ratio for mortgage and loan approval. Track front-end and back-end DTI with proposed mortgage payment analysis.

Pay off debt faster by targeting highest interest rates first. Calculate interest savings and payoff timeline with the avalanche method.

Build momentum by paying off smallest debts first. Track your progress and celebrate wins with the snowball method debt elimination strategy.

Compare avalanche vs snowball vs highest balance vs minimum only strategies side-by-side. Find the best debt payoff method for your situation.

Track your progress towards various savings goals, from emergency funds to big purchases.

Compare your current debts with a consolidated loan to see potential monthly savings and total interest cost reduction.

See how much you can save by making extra mortgage payments. Calculate interest savings and time reduced on your loan.

Estimate the costs of a short-term bridge loan used to purchase a new home before selling your current one.

Estimate interest-only payments during construction and your final mortgage payment upon project completion.

Calculate payments for an interest-only loan, showing both the initial interest-only payment and the final fully-amortized payment.

Calculate monthly payments and the final balloon payment amount for loans that are not fully amortized over their term.

Determine your maximum borrowing capacity based on revenue, cash flow, and lender DSCR requirements.

Analyze whether leasing or buying business equipment is more cost-effective by considering loan payments, depreciation, and tax deductions.

Estimate payments for SBA 7(a) loans, including the upfront SBA guarantee fee.

Estimate monthly payments for business loans, including SBA loans, term loans, and equipment financing.

See how long it will take to pay off credit card debt by making only the minimum payment and how much it will cost you in interest.

Estimate your annual property tax based on your home's assessed value, local tax rate, and any applicable exemptions.

Plan and project how long it will take to save for a down payment on your future home.

Estimate the fees and expenses you will encounter when finalizing a home purchase.

Calculates max home price using debt-to-income (DTI) ratios, income, and monthly debts.

Compare the long-term financial implications of renting a home versus buying one. Analyze costs and benefits to make an informed decision.

Calculate your monthly mortgage payment including principal, interest, taxes, and insurance. Compare different scenarios and see your total cost over time.

Analyze if refinancing your mortgage is the right financial move. Compare your current loan to a new one and see potential savings.

Calculate monthly loan payments, total interest costs, and view complete amortization schedules for personal loans, auto financing, debt consolidation, and other installment loans.

Estimate your monthly car payment and total loan cost, including sales tax, down payment, and trade-in value.

Determine the maximum car price you can afford based on your desired monthly payment and loan terms.

Compare the total costs of leasing versus purchasing a vehicle to see which is more cost-effective for you.

Estimate monthly payments for federal and private student loans under standard repayment plans.

Estimate your monthly student loan payment under federal income-driven plans (like SAVE, PAYE, IBR) and see your potential loan forgiveness amount.

Evaluate if refinancing your student loans can save you money or lower your monthly payments.

Estimate monthly payments and total costs for a federal Parent PLUS loan, including origination fees.

Calculate percentages, including percentage increase/decrease, percentage of a number, and what percentage one number is of another.

Estimate the volume of concrete needed for a slab, footing, or column in cubic yards or meters.