Financial, Mortgage, Tax & Business Economics Calculators
Institutional-grade calculators for compound interest, mortgage amortization, debt payoff, retirement planning, and SaaS unit economics.
Compound Interest & Wealth Growth Calculator
Calculate how your initial investment and monthly contributions grow over time with compound interest.
Mortgage Monthly Payment & Amortization Calculator
Estimate your monthly mortgage principal and interest payment, total loan cost, and down payment impact.
Auto Loan Monthly Payment & Total Interest Calculator
Calculate your monthly car payment after trade-in and down payment across 36 to 84 month loan terms.
Credit Card Payoff & Interest Savings Calculator
Find out how many months it takes to become debt-free and how much interest you pay on credit card balances.
Personal & Business Loan Amortization Calculator
Calculate fixed monthly payments, first-month interest vs principal split, and total cost for any installment loan.
Emergency Fund Runway & Safety Net Calculator
Calculate your ideal 3-to-12 month emergency cash reserve and how long it takes to build it.
Retirement Nest Egg & 4% Safe Withdrawal Calculator
Project your retirement portfolio value at retirement age and sustainable monthly income under the 4% rule.
FIRE Number & Financial Independence Calculator
Calculate your exact Financial Independence Retire Early (FIRE) target number based on annual spending and withdrawal rate.
Dividend Yield & Passive Income Portfolio Calculator
Calculate annual and monthly dividend income and see how much capital is needed to hit your passive income target.
Crypto Investment Profit, ROI & Break-Even Calculator
Calculate net cryptocurrency trading profit, ROI percentage, and exchange fee deductions for any coin.
Stock Average Down & Cost Basis Calculator
Calculate your new average share price when buying the dip or adding to an existing stock position.
Rule of 72 Money Doubling Time Calculator
Compare the classic Rule of 72 approximation with exact logarithmic doubling time for any investment return.
Inflation Purchasing Power & Future Cost Calculator
See how inflation erodes cash purchasing power and how much today's expenses will cost in the future.
Personal Net Worth & Liquidity Ratio Calculator
Calculate your total net worth, liquid net worth, and leverage ratio across cash, investments, real estate, and debts.
Debt-to-Income (DTI) Ratio Mortgage Qualification Calculator
Calculate your front-end and back-end Debt-to-Income (DTI) ratio used by mortgage lenders.
Monthly Savings Target Calculator for Any Goal
Determine exactly how much you need to save each month to hit a specific financial target by your deadline.
CD (Certificate of Deposit) APY & Maturity Calculator
Calculate exact Certificate of Deposit interest earnings and maturity value for 3-month to 60-month CD terms.
Rent vs. Buy Home Breakeven & Cost Comparison Calculator
Compare monthly cash outflow and 5-year net wealth impact of renting an apartment vs buying a house.
How Much House Can I Afford? (28/36 Rule Calculator)
Calculate your maximum affordable home price based on household income, existing debt, and down payment.
Student Loan Repayment & Extra Payment Savings Calculator
Calculate your standard monthly student loan payment and see how much time and interest an extra payment saves.
Gross Profit Margin & Markup Percentage Calculator
Instantly calculate gross profit dollar amount, gross margin %, and markup % from product cost and selling price.
ROAS (Return on Ad Spend) & Break-Even ROAS Calculator
Calculate campaign Return on Ad Spend (ROAS), net profit after ad cost and COGS, and your minimum break-even ROAS.
Business Break-Even Point (Units & Revenue) Calculator
Calculate how many units you need to sell to cover fixed monthly overhead and reach profitability.
Customer Lifetime Value (LTV) & LTV:CAC Ratio Calculator
Calculate Customer Lifetime Value (LTV) and your LTV-to-CAC ratio for SaaS or e-commerce retention.
Customer Acquisition Cost (CAC) Marketing Efficiency Calculator
Calculate blended and paid Customer Acquisition Cost (CAC) across ad spend, marketing salaries, and software overhead.
SaaS MRR Growth, Net Churn & ARR Projection Calculator
Forecast your SaaS Monthly Recurring Revenue (MRR) and Annual Run Rate (ARR) over 12 months factoring in growth and churn.
Freelance Hourly Rate & Target Annual Income Calculator
Calculate your minimum billable hourly and day rate as a freelancer after taxes, overhead, vacation, and non-billable hours.
Stripe & PayPal Processing Fee & Invoice Reverse Calculator
Calculate Stripe/PayPal processing fees (2.9% + $0.30) and the exact amount to invoice so you receive 100% net.
Shopify Dropshipping Unit Economics & Net Profit Calculator
Calculate net profit per order and monthly store earnings after supplier cost, shipping, CPA ad cost, and gateway fees.
Amazon FBA Referral & Fulfillment Margin Calculator
Estimate Amazon FBA net profit per unit, ROI %, and monthly earnings after 15% referral fee, FBA pick & pack, and PPC.
Discount, Double Stack Sale Price & Tax Calculator
Calculate final checkout price and total savings with single or stacked promotional discounts plus sales tax.
VAT & Sales Tax Inclusive / Exclusive Reverse Calculator
Add VAT/GST/Sales Tax to a net amount or extract the pre-tax net price from a tax-inclusive gross total.
Sales Rep Commission & Tiered OTE Payout Calculator
Calculate sales representative commission payout, accelerator bonus above quota, and total On-Target Earnings (OTE).
Salary to Hourly, Daily, Weekly & Monthly Wage Converter
Convert your annual salary into exact hourly, daily, weekly, bi-weekly, and monthly paycheck equivalents.
Overtime Pay (1.5x Time-and-a-Half & 2x Double Time) Calculator
Calculate total weekly gross pay including regular hours, 1.5x overtime hours, and 2x holiday/double-time hours.
Email Marketing & Newsletter Campaign ROI Calculator
Project email campaign clicks, conversions, total revenue, and ROI from your subscriber list size, open rate, and CTR.
Website Conversion Rate & CRO Revenue Lift Calculator
Calculate current conversion rate and see how much extra monthly revenue a 0.5% or 1% CRO improvement generates.
Digital Ad CPM, CPC, CTR & CPA Media Buying Calculator
Calculate eCPM, CPC, CTR %, and Cost Per Acquisition (CPA) from campaign spend, impressions, clicks, and conversions.
Startup Cash Burn Rate & Runway Months Calculator
Calculate your startup's gross burn, net monthly burn, and remaining months of cash runway before zero-cash date.
Inventory Reorder Point (ROP) & Safety Stock Calculator
Calculate your exact Inventory Reorder Point (ROP) and safety stock buffer so you never stock out on best-sellers.