Financial Intelligence.
Precision economic forecasting for modern professionals. From amortizing mortgages to modeling high-yield growth curves — verified for professional financial staging.
CAGR Calculator
Compound annual growth rate, total percentage return, and year-by-year compounding trajectory.
Launch ToolRule of 72 Calculator
How many years it takes money to double at a given rate, with the exact answer alongside the shortcut.
Launch ToolDebt-to-Income Ratio Calculator
Front-end and back-end DTI from income and debts, checked against the 28/36 mortgage thresholds.
Launch ToolProfit Margin Calculator
Gross profit, margin, and markup from cost and price — or the price you need to charge to hit a target margin.
Launch ToolCurrency Converter
Convert between 34 major world currencies using live mid-market exchange rates. See the exact rate, its inverse, and what your money is genuinely worth before you exchange it.
Launch ToolSales Tax & GST
Add tax to a price or pull it back out of a tax-inclusive total. Presets for the Indian GST slabs (5/12/18/28%) plus any custom sales-tax or VAT rate.
Launch ToolIncome Tax Estimator
Estimate your 2025 US federal income tax by filing status. See taxable income, total tax, take-home pay, and your effective vs marginal rate.
Launch ToolInflation Calculator
See what a sum of money is worth after inflation, how much purchasing power it loses over time, and what you would need in future to match it.
Launch ToolBreak-Even Calculator
Find how many units you must sell to cover fixed and variable costs, your contribution margin per unit, and your margin of safety.
Launch ToolSimple Interest
Calculate interest and the final amount with the I = P × R × T formula, and see how much more the same money would earn if it compounded.
Launch ToolDebt Payoff Planner
Compare the snowball and avalanche methods across all your debts. See months to debt-free, total interest, payoff order, and the savings between them.
Launch ToolMortgage Analytics
Calculate fixed-rate mortgage payments. Factoring in property value, down payments, and variable interest rates for clear monthly carrying costs.
Launch ToolInterest Analysis
Model investment growth over time. Factoring in regular contributions and APY to see how assets expand via compounding.
Launch ToolAsset Financing
Calculate monthly payments including tax, trade-ins, and interest intervals. Perfect for clinical budgeting of transport assets.
Launch ToolCapital Studio
Visualize exponential growth through compounding returns and periodic contributions over long-term horizons.
Launch ToolRetirement Planner
Project your 401(k), IRA, or pension balance at retirement. See how long your savings last and what monthly income you can expect.
Launch ToolCredit Card Payoff
Calculate exactly when your credit card debt disappears and how much interest you will pay. Adjust monthly payment to find the fastest payoff date.
Launch ToolSalary Calculator
Calculate take-home pay after federal income tax, FICA, and state taxes for all 50 US states. See your net paycheck amount.
Launch ToolElectricity Cost
Calculate the exact cost to run any appliance per day, month, and year. Enter wattage, usage hours, and your local rate per kWh.
Launch ToolUnit Price Calculator
Compare up to 6 products by price per unit to find the best deal. Highlights the cheapest option automatically.
Launch ToolMeeting Cost
Calculate the real dollar cost of any meeting. See cost per minute, weekly total, and projected annual expense from recurring meetings.
Launch ToolTime Card Calculator
Weekly timesheet calculator. Enter clock-in and clock-out times to calculate hours worked, overtime, and gross pay.
Launch ToolSavings Goal
Calculate exactly how much to save each month to hit a target amount by a date, accounting for interest along the way.
Launch ToolPaycheck Calculator
Calculate your US take-home pay after federal income tax, Social Security, and Medicare using 2024 tax brackets.
Launch ToolPersonal Loan Calculator
Calculate your monthly payment, total interest, and total cost for any personal loan amount, rate, and term.
Launch ToolAmortization Schedule
Generate a full month-by-month amortization table showing principal, interest, and remaining balance for every payment.
Launch ToolCar Lease Calculator
Calculate monthly car lease payments using money factor and residual value. See the full depreciation and finance charge breakdown.
Launch ToolNet Worth Calculator
Enter your assets and liabilities to calculate your total personal net worth. Includes home, investments, retirement, loans, and credit card debt.
Launch ToolHome Affordability
Find out how much house you can afford using the 28/36 rule. Enter income, debts, and down payment to get your maximum home price.
Launch ToolNot sure what a term means?
APR, amortization, LTV, PMI, compound interest, IRR — all explained plainly.
Research & Notes.
In-depth articles on the math and logic behind our tools — written for people who want to understand the calculations, not just run them.
CAGR vs Average Annual Return: Why the Two Numbers Disagree
150% total growth over 5 years is not 30% a year. CAGR finds the one compound rate that actually reconstructs the real ending value - simple average overstates it every time growth compounds.
Margin vs Markup: Why Adding 30% to Cost Does Not Give You a 30% Margin
Adding your target percentage to cost is the most common pricing error in small business, and it always undershoots. Here is the arithmetic that separates margin from markup, and what a discount really costs.
Why Your Savings Account Interest Compounds Faster Than You Think
APY and APR are not the same number, and the difference grows with compounding frequency. Here is the math behind how often your bank actually compounds interest, and why that detail matters more than the headline rate.