Free Online Calculators

Free Financial & Business Calculators

Calculate taxes, mortgage payments, loans, salary, compound interest, retirement savings, profit margins, ROI, ROAS, discounts, and more with free online calculators.

Fast, simple, easy to use, and no sign-up required.

Explore Free Calculators

Free Online Calculators

Choose from 20 free calculators for personal finance, mortgages, loans, taxes, retirement, investing, business, and digital marketing.

Business & Marketing

Profit Margin Calculator

Calculate profit, profit margin, and markup from revenue and business costs.

Open Profit Margin Calculator →
Business & Marketing

Markup Calculator

Calculate markup percentage, selling price, profit, and profit margin.

Open Markup Calculator →
Business & Marketing

Break-Even Calculator

Calculate the number of units or sales needed to cover fixed and variable costs.

Open Break-Even Calculator →
Business & Marketing

ROI Calculator

Calculate return on investment from investment cost and investment gain.

Open ROI Calculator →
Business & Marketing

ROAS Calculator

Calculate return on advertising spend from ad cost and advertising revenue.

Open ROAS Calculator →
Business & Marketing

Conversion Rate Calculator

Calculate conversion rate from visitors, leads, sales, or other conversions.

Open Conversion Rate Calculator →
Salary & Personal

Sales Tax Calculator

Calculate sales tax, tax amount, and the total price after sales tax.

Open Sales Tax Calculator →
Salary & Personal

Reverse Sales Tax Calculator

Find the original pre-tax price and sales tax from a tax-inclusive total.

Open Reverse Sales Tax Calculator →
Salary & Personal

Discount Calculator

Calculate discounted price, discount amount, and how much money you save.

Open Discount Calculator →
Salary & Personal

Hourly to Salary Calculator

Convert hourly pay into annual, monthly, biweekly, weekly, and daily earnings.

Open Hourly to Salary Calculator →
Mortgage & Loans

Mortgage Calculator

Estimate monthly mortgage payments from home price, down payment, interest rate, and loan term.

Open Mortgage Calculator →
Mortgage & Loans

Mortgage Amortization Calculator

Calculate monthly principal, interest, and remaining mortgage balance over time.

Open Mortgage Amortization Calculator →
Mortgage & Loans

Loan Calculator

Calculate monthly loan payments, total interest, and total repayment amount.

Open Loan Calculator →
Mortgage & Loans

Compound Interest Calculator

Estimate how savings and investments can grow through compound interest.

Open Compound Interest Calculator →
Mortgage & Loans

Property Tax Calculator

Estimate annual and monthly property tax from property value and tax rate.

Open Property Tax Calculator →
US Tax & Retirement

401(k) Calculator

Estimate future 401(k) retirement savings from contributions, employer match, and investment growth.

Open 401(k) Calculator →
US Tax & Retirement

Income Tax Calculator

Estimate 2026 U.S. federal income tax from income and filing status.

Open Income Tax Calculator →
US Tax & Retirement

IRS Tax Bracket Calculator

Find your 2026 federal income tax bracket, marginal tax rate, and estimated tax.

Open IRS Tax Bracket Calculator →
US Tax & Retirement

Capital Gains Tax Calculator

Estimate short-term and long-term capital gains and potential federal tax.

Open Capital Gains Tax Calculator →
US Tax & Retirement

Crypto Capital Gains Calculator

Calculate cryptocurrency capital gains or losses for tax planning.

Open Crypto Capital Gains Calculator →

Browse Calculators by Category

Find calculators by topic and quickly open the tool that matches the calculation you need.

Calculations made simple

CalcForBiz is designed to make common financial and business calculations easier to understand without spreadsheets, complicated formulas, or account registration.

Free to Use

Use our online calculators without creating an account or signing up for a subscription.

Clear Calculations

Each calculator is designed to show useful results with explanations that make the numbers easier to understand.

Multiple Financial Topics

Calculate business metrics, taxes, mortgages, loans, salary, investments, and retirement savings in one place.

About CalcForBiz

CalcForBiz provides free online calculators designed to help employees, consumers, business owners, marketers, homeowners, investors, and entrepreneurs make faster and more informed financial decisions.

Our calculators cover business profitability, advertising performance, salary, discounts, sales tax, mortgages, loans, compound interest, property taxes, U.S. federal taxes, capital gains, cryptocurrency gains, and retirement savings.

Each calculator is designed to make formulas and results easy to understand. Where calculations depend on tax rules, assumptions, or other variables, individual calculator pages explain the methodology and important limitations.

CalcForBiz tools are provided for general informational and educational purposes. Financial and tax calculations can vary based on individual circumstances and applicable rules.