Browse All Tools
Discover our complete collection of financial engines, health calculators, math solvers, and everyday utilities. All tools are free, fast, and formula-verified.
Financial Calculators
Budgeting & Savings
Budget Calculator (50/30/20)
Split income into needs, wants, and savings using the 50/30/20 rule or custom percentages.
Net Worth Calculator
Net worth = total assets − total liabilities. Track over time.
Savings Goal Calculator
How many months to reach a savings goal with current balance and monthly contribution.
Emergency Fund Calculator
Target = months of expenses × monthly expenses. Typically 3–6 months.
Business & SMB
Break-Even Point
Find out how many units you need to sell to cover all your costs.
Hourly to Salary
Convert your hourly wage into an annual salary estimate for USA payroll.
Customer LTV
Calculate the total revenue expected from a single customer over time.
Startup Costs
Estimate the initial capital required to launch your new small business.
Profit Margin Calculator
Calculate gross and net profit margins based on unit costs and sales volume.
Payroll Tax Calculator
Estimate total employer employment costs including FICA, SUTA, and FUTA.
Burn Rate Calculator
Measure how fast your business is spending cash compared to revenue.
AR Turnover Ratio
Measure how efficiently your company collects its accounts receivable.
Inventory Turnover
Calculate how many times inventory is sold and replaced over a period.
DSCR Calculator
Calculate Debt Service Coverage Ratio (DSCR) for loan underwriting.
ROAS Calculator
Calculate Return on Ad Spend (ROAS) to measure marketing effectiveness.
Freelance Hourly Rate
Calculate the minimum hourly rate you need to charge to meet your income goals.
Free Cash Flow (FCF)
Calculate free cash flow available to investors after necessary capital expenditures.
Working Capital
Measure your company's short-term liquidity and operational efficiency.
Quick Ratio (Acid Test)
Determine if a company can meet short-term liabilities without selling inventory.
Debt-to-Equity Ratio
Measure the relative proportion of shareholders' equity and debt used to finance assets.
Interest Coverage Ratio
Assess a firm's ability to pay interest expenses on outstanding debt.
Net Profit Margin
Calculate the percentage of revenue that remains as net income.
Gross Profit Margin
Calculate the gross margin and profit remaining after cost of goods sold.
Operating Margin
Measure how much profit a company makes on a dollar of sales after paying for variable costs of production.
Asset Turnover Ratio
Measure the value of a company's sales or revenues generated relative to the value of its assets.
Return on Equity (ROE)
Calculate the financial performance calculated by dividing net income by shareholders' equity.
WACC Calculator
Calculate the weighted average cost of capital (WACC) for a firm.
CAC Calculator
Measure the total cost of acquiring a new customer for your business.
Churn Rate
Measure customer attrition and the average lifespan of your user base.
EBITDA Calculator
Calculate EBITDA and EBIT to assess operational business profitability.
Enterprise Value
Estimate the total enterprise value of a company using market components.
Liquidation Value
Calculate net cash remaining after a hypothetical business liquidation.
SaaS MRR & ARR Calculator
Instantly calculate your SaaS business Monthly Recurring Revenue (MRR) and Annual Recurring Revenue (ARR) from your customer and pricing data.
Churn Rate Calculator
Calculate your business churn rate to understand how many customers you are losing and how to improve retention.
NPS Calculator
Calculate your NPS score based on Promoters, Passives, and Detractors to measure customer satisfaction and loyalty.
Debt & Credit
Credit Card Payoff Calculator
Calculate how long it will take to pay off your credit card debt and see how much interest you'll save by increasing payments.
Debt Snowball Calculator
Use our debt snowball calculator to build momentum in your debt-free journey. Focus on paying off smallest balances first to gain quick psychological wins.
Debt Avalanche Calculator
Mathematically the fastest way to pay off debt. Focus on the highest interest rates first to minimize total interest paid and become debt-free sooner.
Debt Consolidation Calculator
Use our debt consolidation calculator to see how much interest and monthly cash flow you can save by combining multiple high-interest debts into a single, lower-rate loan.
Credit Card Interest Calculator
Estimate interest charge for a billing period using daily compounding.
Minimum Credit Card Payment Calculator
See minimum payment (percent or fixed) and how long payoff takes if you pay only the minimum.
Credit Utilization Calculator
Utilization = (balance / credit limit) × 100. Under 30% is generally better for scores.
Balance Transfer Calculator
Compare payoff with balance transfer (promo rate + fee) vs staying on current card.
Credit Score Simulator
Simulate common financial actions like paying off debt or missing a payment to see how they might impact your credit score.
Debt Payoff Timeline Calculator
Calculate exactly when you will be debt-free based on your current balance, interest rate, and planned monthly payment.
Student Loan Refinance Calculator
Calculate potential savings by refinancing student loans. See how much you can save on monthly payments and lifetime interest.
Balance Transfer Savings
Calculate potential interest savings on balance transfers.
Debt Freedom Date
Calculate the exact date you will pay off all debt.
Auto Loan Calculator
Estimate monthly car payments and total interest.
Investing Tools
FIRE Number Calculator
Calculate exactly how much you need to save to retire early and live off your investments.
Compound Interest Calculator
See how your money grows with compound interest. Enter principal, rate, and years.
Simple Interest Calculator
Calculate interest and future value using simple interest (no compounding).
Investment Growth Calculator
Project future value with initial lump sum and regular monthly contributions.
CAGR Calculator
Compute the compound annual growth rate between two values over a number of years.
ROI Calculator
Calculate return on investment: (Gain − Cost) / Cost as a percentage.
Dividend Yield Calculator
Dividend yield = (Annual dividend per share / Price per share) × 100.
Inflation Calculator
Convert between today's real value and future nominal value using an annual inflation rate.
Dollar Cost Averaging Calculator
See how your wealth grows by investing a fixed amount every single month, regardless of market conditions.
Crypto Profit Calculator
Calculate your cryptocurrency profits, ROI, and fees for any coin like Bitcoin or Ethereum. Support for exchange fees included.
College Savings Calculator (529 Plan)
Calculate how much you need to save for college, including projected tuition inflation and account growth.
Rental Property Depreciation Calculator
Calculate the annual tax deduction for your rental property based on IRS depreciation rules for residential buildings.
Options Profit Calculator (Call & Put)
Analyze potential profit and loss scenarios for stock options. Understand break-even prices and ROI for trades.
Mortgage & Loans
Early Mortgage Payoff Calculator
See how much interest you can save by making extra payments on your mortgage.
Biweekly Mortgage Calculator
Calculate how much time and interest you save with a biweekly mortgage payment schedule.
Loan Comparison Calculator
Instantly compare two different loan offers to see which one saves you more money over time.
HELOC Calculator
Calculate your monthly payments for both the interest-only draw period and repayment phase.
PMI Calculator
Calculate your monthly PMI cost and see when you'll reach 20% equity to stop paying it.
Mortgage Points Calculator
Determine the break-even point for buying mortgage points to lower your interest rate.
Closing Cost Calculator
Estimate the total closing costs for your home purchase.
Home Affordability Calculator
Enter your income and debts to find out exactly how much house you can afford. Based on standard DTI guidelines.
Rent vs Buy Calculator
Compare the total cost of renting versus buying a home over time including appreciation and equity.
Down Payment Calculator
Calculate how much to save monthly and see how long it takes to build your down payment.
Mortgage Calculator
Calculate your monthly mortgage payment including principal, interest, taxes, and insurance. Free instant results.
APR Calculator
Calculate the Annual Percentage Rate (APR) including all upfront fees to find the true cost of borrowing.
Mortgage Loan-to-Value (LTV) Calculator
Calculate your Loan-to-Value ratio to find out your home equity, if you qualify to drop PMI, and your refinancing eligibility.
Mortgage Affordability Calculator (with Taxes)
Find out exactly how much house you can afford by including property taxes, home insurance, and your existing monthly debts.
Mortgage Extra Payment Calculator
See how much interest you can save and how many years you can shave off your mortgage by making extra principal payments.
Mortgage Refinance Break-Even Calculator
Calculate the exact month you will start saving money after refinancing by comparing your current and new payments against closing costs.
Mortgage Amortization Schedule Calculator
Generate a complete amortization schedule for your mortgage. See exactly how much interest and principal you pay each month and year.
Mortgage Interest Savings Calculator
Compare your current mortgage interest rate with a lower rate to see exactly how much you can save in interest over time.
VA Mortgage Calculator
Calculate your VA mortgage payment, including the VA Funding Fee and monthly property tax. Zero down payment options available for veterans.
Home Seller Net Sheet Calculator
Estimate exactly how much money you'll keep after selling your home, accounting for commissions, taxes, and fees.
Personal Finance
Credit Score Range
Compare your credit score against US averages.
Gas Cost Calculator
Calculate fuel costs for your next road trip.
Wedding Cost Calculator
Estimate wedding costs based on guest count.
Pet Cost Ownership Calculator
Calculate the lifetime cost of a dog or cat.
Coffee Savings Calculator
See how much your daily coffee habit could be worth if invested.
Personal Loans
Auto Lease vs Buy
Compare the long-term total cost of buying vs leasing a vehicle.
Balloon Payment
Calculate the final lump sum payment for balloon mortgages or loans.
Interest-Only Loan
Calculate monthly interest payments and see post-IO period jumps.
Debt-to-Income (DTI) Calculator
Calculate your debt-to-income ratio to see if you qualify for a home loan in the US.
Personal Loan Calculator
Calculate personal loan payments including origination fees and see the true APR with a full amortization schedule.
Loan Payment Calculator (PMT)
Calculate fixed monthly payment for a loan using the standard PMT formula.
Loan Amortization Schedule Calculator
Full amortization schedule: each payment split into principal and interest.
Student Loan Calculator
Estimate monthly payment and total interest for standard student loan repayment.
Auto Loan Calculator
Monthly payment for an auto loan; optional down payment. Term in months.
Refinance Calculator
Compare current loan to refinance: new payment, break-even months, interest savings.
Real Estate Investing
Rental Property ROI
Calculate return on investment for rental properties based on purchase price and vacancy.
Mortgage Recast Calculator
Estimate your new monthly payment after a mortgage recast or lump-sum payment.
Home Upkeep & Budget
Plan for home repairs and maintenance using the 1% annual value rule.
Property Tax Calculator
Calculate your annual property tax bill based on assessed value and mill rates.
Mortgage Payoff Goal
Calculate the extra payment needed to pay off your mortgage by a specific date.
1031 Exchange Calculator
Estimate tax savings and boot through a Section 1031 like-kind exchange.
BRRRR Method Calculator
Analyze your real estate investment using the popular BRRRR strategy.
AirBnB ROI Calculator
Project your nightly rental profits based on occupancy and platform fees.
Gross Rent Multiplier (GRM) Calculator
Calculate the Gross Rent Multiplier (GRM) to quickly compare and screen investment properties by how many years of rent it takes to match the purchase price.
Retirement
401(k) Contribution Calculator
Calculate your future 401(k) balance including employer matching and compound growth. Optimize your contributions for retirement.
Social Security Benefits Estimator
Estimate your future Social Security monthly benefits based on your current income and planned retirement age.
Roth vs Traditional IRA Calculator
Compare the long-term after-tax benefits of a Roth IRA vs. a Traditional IRA based on your current and future tax brackets.
Retirement Planning
401(k) Calculator
See how much your 401(k) will grow with employer matching and consistent contributions.
Retirement Withdrawal Calculator
Check if your retirement savings will last. Calculate withdrawal safety using the 4% rule.
Retirement Savings Goal Calculator
Calculate exactly how much you need to save per month to reach your retirement target balance.
IRA Contribution Limit Calculator
Check your 2026 IRA contribution and deduction limits based on your age, income, and filing status.
Specialized Tools
Refinance Savings
Calculate monthly savings and the break-even point of refinancing your loan.
Inflation Impact
See how inflation erodes the buying power of your savings over the years.
Rule of 72
Estimate the time it takes for your money to double at a given rate.
DRIP Dividend Calculator
Calculate the long-term wealth effect of reinvesting all stock dividends.
Bond Yield to Maturity
Approximate the yield to maturity (YTM) for individual coupon bonds.
Effective Interest Rate (EAR)
Calculate the annual effective rate (EAR) including compounding effects.
Discount Calculator
Calculate the final sale price after one or two discounts are applied. Instantly see your total savings and effective discount rate.
Tax Calculators
Estate Tax Estimate
Estimate potential federal estate tax liability based on 2026 tax standards.
Gift Tax Calculator
Track your annual gift exclusions and see potential lifetime credit impacts.
HSA Tax Savings
Calculate how much you save on income and payroll taxes by using an HSA.
529 Plan Growth
Project future college fund values and estimate state tax benefits.
Income Tax Calculator
Calculate your 2026 federal income tax instantly. Enter income, filing status and deductions.
FICA Tax Calculator
Calculate your 2026 FICA tax deductions from your paycheck including Social Security and Medicare.
Capital Gains Tax Calculator
Estimate the tax you'll owe on the sale of assets like stocks, crypto, or real estate.
Sales Tax Calculator
Quickly calculate the total cost of a purchase including state and local sales taxes.
Self-Employment Tax Calculator
Calculate your self-employment tax including Social Security & Medicare with the 92.35% adjustment factor.
Tax Refund Estimator
Estimate your federal tax refund or amount owed based on income, withholdings, and filing status.
Paycheck Calculator - Take-Home Pay Estimator
Calculate your take-home pay after federal, FICA, and state tax withholdings. Plan your net income with precision.
Health & Fitness
BMI Calculator
Calculate your Body Mass Index and see your weight category.
Ideal Weight
Find your healthy weight range using proven medical formulas.
Calorie Calculator
Daily calorie needs for weight loss, maintenance, or muscle gain.
Water Intake
Personalized daily hydration needs based on your weight.
Body Fat %
U.S. Navy formula to accurately estimate body fat percentage.
School & University
GPA Goal Planner
Find exactly what grades you need next semester to hit your GPA goal.
Weighted GPA Calc
High school weighted (AP/IB) vs unweighted GPA and final exam needed.
Admission Chance
Calculate your chances of getting into Ivy League and state colleges.
College Cost & ROI
Total cost of university in USA plus long-term degree payoff (ROI).
SAT / ACT Converter
Convert scores instantly and see top 50 university competitiveness.
Scholarship Hunt
Find potential scholarship matches based on your GPA and state.
Pass / Fail Calc
Panic-mode ready: Find the exact grade you need to pass your class.
Class Rank Calc
Percentile analysis and admissions impact of your standing.
Study Planner
Pomodoro focus intervals and exam prep time recommendations.
Student Loan Planner
Payoff timeline and salary debt-to-income (DTI) lifestyle analysis.
Math, Science & Conversion
Math Toolkit
Square root, exponents, LCM, GCD, slope and logarithms.
Unit Converter
Convert temperature, length, weight, area, volume & speed.
Scientific Calculator
Online calculator with sin, cos, log, factorials and exponents.
Fraction Calculator
Add, subtract, multiply, and divide fractions easily.
Standard Deviation
Calculate sample/population variance and standard deviation.
Percentage Tools
Increase/decrease, differences, and X% of Y calculations.
Ratio Calculator
Solve equivalent ratios and easily scale recipes and proportions.
Life & Everyday Tools
Tip Calculator
Quickly calculate tip amounts and cleanly split restaurant bills.
Fuel Cost
Estimate trip fuel mileage, total gas costs, and split money.
Discount Calculator
Find final prices after percentage off and sales tax.
Age Calculator
Calculate exact age in years, months, weeks, and days.
Days Between Dates
Find the exact number of days spanning two dates.
Business Days
Count working days between dates, excluding the weekends.
Time Between
Calculate hours and minutes elapsed between two clock times.
Business & Utility
Business Hub
Commission, markup, break-even, and simple loan interest.
Dice & Randomizer
Virtual dice roller, list name picker, and lottery odds.
Random Numbers
Generate single or multiple random numbers in any range.
Love Calculator
Fun name-based numerology affinity and compatibility testing.
Birthday Countdown
Watch the live countdown of days, hours and seconds to your birthday.