Business
ROI Calculator
Measure the percentage return on an investment by comparing its gain with its original cost.
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100 practical tools with transparent formulas, worked examples, and decision guidance. Every calculation runs privately in your browser.
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Business
Profit Margin Calculator
Find the percentage of revenue left after costs and understand how efficiently a sale creates profit.
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Markup Calculator
Calculate how much a selling price exceeds cost, expressed as a percentage of that cost.
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Break-Even Calculator
Estimate how many units you must sell for contribution profit to cover fixed costs.
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Commission Calculator
Calculate commission earnings from a sale amount and percentage rate.
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ROAS Calculator
Measure the revenue generated for every dollar spent on advertising.
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Customer Acquisition Cost Calculator
Calculate the average sales and marketing cost required to acquire one new customer.
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CPM Calculator
Calculate advertising cost per one thousand impressions for a campaign or placement.
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CPC Calculator
Calculate the average advertising cost for each click generated by a campaign.
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Conversion Rate Calculator
Find the percentage of visitors who complete a desired action, such as a purchase or signup.
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Cash Flow Calculator
Calculate net cash flow by subtracting cash outflows from cash inflows.
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Operating Margin Calculator
Measure operating income as a percentage of revenue before interest and taxes.
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Revenue Growth Calculator
Calculate the percentage change in revenue between two comparable periods.
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Labor Cost Calculator
Estimate fully loaded annual labor cost beyond an employee's base salary.
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Inventory Turnover Calculator
Calculate how many times average inventory is sold or used during a period.
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Payback Period Calculator
Estimate how many years of steady cash flow are needed to recover an investment.
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Contribution Margin Calculator
Calculate the share of revenue remaining after variable costs.
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CTR Calculator
Calculate click-through rate from ad or link clicks and impressions.
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CPA Calculator
Calculate average advertising cost for each acquisition or conversion.
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Email Open Rate Calculator
Measure opens as a percentage of delivered marketing emails.
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Email Click Rate Calculator
Calculate the percentage of delivered emails that generated a click.
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Bounce Rate Calculator
Calculate the percentage of sessions that ended without the engagement you define.
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Engagement Rate Calculator
Measure interactions as a percentage of reach for social or content campaigns.
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Lead-to-Customer Rate Calculator
Calculate the percentage of qualified leads that became customers.
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Average Order Value Calculator
Calculate average revenue generated by each ecommerce order.
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Cart Abandonment Rate Calculator
Measure the percentage of initiated shopping carts that did not become purchases.
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Discount Calculator
Calculate the sale price after applying a percentage discount.
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Shipping Cost Per Order Calculator
Calculate average outbound shipping spend for each fulfilled order.
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Ecommerce Return Rate Calculator
Calculate the percentage of sold items that customers returned.
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Reorder Point Calculator
Estimate the inventory level that should trigger a replenishment order.
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Customer Lifetime Value Calculator
Estimate customer lifetime revenue from order value, purchase frequency, and lifespan.
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MRR Calculator
Calculate normalized monthly recurring revenue from customers and average monthly revenue.
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ARR Calculator
Annualize monthly recurring revenue for a subscription business.
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SaaS Churn Rate Calculator
Calculate the percentage of starting SaaS customers lost during a period.
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LTV to CAC Ratio Calculator
Compare customer lifetime value with customer acquisition cost.
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SaaS CAC Payback Calculator
Estimate how many months of gross profit are needed to recover customer acquisition cost.
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Net Revenue Retention Calculator
Calculate recurring revenue retained after expansion, contraction, and churn.
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SaaS Rule of 40 Calculator
Combine recurring-revenue growth and profit margin into the SaaS Rule of 40 score.
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Freelance Hourly Rate Calculator
Estimate the hourly rate needed to cover income goals and business expenses.
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Freelance Project Rate Calculator
Build a project quote from time, hourly value, direct expenses, and contingency.
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Billable Utilization Calculator
Calculate the percentage of working time spent on billable client work.
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Freelance Tax Set-Aside Calculator
Estimate how much freelance income to reserve using a chosen tax percentage.
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Effective Hourly Rate Calculator
Calculate actual project revenue earned per hour of total time spent.
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Freelance Retainer Calculator
Estimate a monthly retainer from reserved hours, hourly value, and a retainer discount.
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Compound Interest Calculator
Project a balance using principal, interest rate, time, and compounding frequency.
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Simple Interest Calculator
Calculate a future balance when interest is earned only on the original principal.
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Loan Payment Calculator
Estimate the fixed monthly principal-and-interest payment for an amortizing loan.
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Savings Goal Calculator
Estimate the monthly contribution needed to close a savings gap by a target date.
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Inflation Calculator
Estimate the future cost of an item after compound inflation.
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Debt-to-Income Ratio Calculator
Calculate monthly debt payments as a percentage of gross monthly income.
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Gross Profit Calculator
Calculate gross profit by subtracting cost of goods sold from revenue.
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Net Profit Calculator
Calculate net profit or loss after subtracting total expenses from revenue.
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Target Profit Calculator
Estimate the unit sales needed to cover fixed costs and reach a target operating profit.
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Payroll Burden Calculator
Calculate employer costs above base payroll as a percentage of base wages.
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Cost Per Lead Calculator
Calculate marketing cost per lead from spend and qualified lead volume.
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Lead Value Calculator
Calculate average revenue generated per lead in a defined cohort.
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Revenue Per Visitor Calculator
Calculate average revenue generated for each website visitor or session.
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Unsubscribe Rate Calculator
Calculate the percentage of delivered emails that generated an unsubscribe.
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Gross Merchandise Value Calculator
Calculate gross merchandise value from order count and average order value.
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Repeat Purchase Rate Calculator
Calculate the percentage of customers who made more than one purchase.
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Inventory Days Calculator
Estimate how many days of cost of goods sold are held in average inventory.
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Economic Order Quantity Calculator
Estimate the order quantity that balances annual ordering and inventory holding costs.
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Average Revenue Per User Calculator
Calculate recurring revenue per active customer or account for a consistent period.
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Gross Revenue Retention Calculator
Calculate recurring revenue retained before expansion from an opening customer cohort.
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SaaS Quick Ratio Calculator
Compare new and expansion MRR with contraction and churned MRR.
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Burn Multiple Calculator
Calculate cash burned for each dollar of net new annual recurring revenue.
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Cash Runway Calculator
Estimate how many months current cash can fund a constant monthly net burn.
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Freelance Day Rate Calculator
Estimate the minimum day rate needed to cover an annual income goal and business expenses.
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APY Calculator
Convert a nominal annual interest rate and compounding frequency into annual percentage yield.
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Percentage Change Calculator
Calculate the percentage increase or decrease from an original value to a new value.
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Percentage Calculator
Calculate a percentage of any number using the standard percentage formula.
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Percentage Difference Calculator
Calculate the relative difference between two values without treating either value as the starting point.
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Slope Calculator
Calculate the slope of a line from two coordinate points.
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Pythagorean Theorem Calculator
Calculate the hypotenuse of a right triangle from the two perpendicular side lengths.
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Circle Area Calculator
Calculate the area of a circle from its radius.
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Triangle Area Calculator
Calculate triangle area from a base length and perpendicular height.
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Cylinder Volume Calculator
Calculate the volume of a circular cylinder from radius and height.
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Exponent Calculator
Raise a base number to any numeric exponent.
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Square Root Calculator
Calculate the principal square root of a nonnegative number.
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Tip Calculator
Calculate the total bill including tip and divide it evenly among a group.
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Sales Tax Calculator
Calculate a purchase total after applying a user-entered sales tax rate.
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Fuel Cost Calculator
Estimate trip fuel cost from distance, fuel efficiency, and fuel price.
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Gas Mileage Calculator
Calculate miles per gallon from distance traveled and fuel used.
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Square Footage Calculator
Calculate the area of a rectangular floor, wall, lot, or material section in square feet.
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Concrete Volume Calculator
Estimate concrete volume in cubic yards from slab length, width, and depth.
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Electricity Cost Calculator
Calculate electricity cost from energy use and the price per kilowatt-hour.
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Unit Price Calculator
Calculate cost per item, weight unit, volume unit, or other quantity.
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Speed Calculator
Calculate average speed from distance traveled and elapsed time.
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Mortgage Calculator
Estimate a monthly mortgage payment including principal, interest, property tax, home insurance, and HOA dues.
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Mortgage Amortization Calculator
Calculate a fixed mortgage payment and the total principal, interest, and number of payments across the loan term.
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Home Affordability Calculator
Estimate a home-price ceiling from income, monthly debts, down payment, mortgage terms, taxes, insurance, and a chosen debt-to-income limit.
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Mortgage Refinance Calculator
Compare current and proposed mortgage payments, closing-cost break-even time, and projected remaining interest.
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Down Payment Calculator
Convert a down-payment percentage into cash required, estimated mortgage amount, and starting loan-to-value ratio.
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Loan-to-Value Calculator
Calculate mortgage loan-to-value ratio, estimated owner equity, and the equity percentage from balance and property value.
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Auto Loan Calculator
Estimate a monthly car payment, amount financed, sales tax, total payments, and interest from vehicle price and loan terms.
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Investment Calculator
Project an investment balance from starting capital, monthly contributions, annual return, and time, with contributions and growth separated.
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Retirement Calculator
Estimate the savings needed at retirement to fund a monthly income gap over a chosen period and assumed return.
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Salary Calculator
Convert annual salary into hourly, daily, weekly, biweekly, and monthly gross pay using a chosen work schedule.
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Interest Rate Calculator
Estimate the fixed annual interest rate implied by a loan amount, monthly payment, and repayment term.
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401(k) Calculator
Project a workplace retirement-account balance from current savings, salary-based employee and employer contributions, return, and time.
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