Free Business Calculator

Instantly calculate ROI, markup, profit margin, break-even point, discounts, sales tax, and hourly rates. No signup required.

% Markup Calculator

Selling Price--
Profit--
Markup %--
Margin %--
Formula
Selling Price = Cost x (1 + Markup% / 100) Profit = Selling Price - Cost Margin% = (Profit / Selling Price) x 100

$ Profit Margin Calculator

Gross Profit--
Gross Margin %--
Net Profit--
Net Margin %--
Formula
Gross Profit = Revenue - COGS Gross Margin% = (Gross Profit / Revenue) x 100 Net Profit = Revenue - COGS - Expenses Net Margin% = (Net Profit / Revenue) x 100

↑ ROI Calculator

Net Gain / Loss--
ROI %--
Annualized ROI %--
Formula
ROI% = ((Return - Investment) / Investment) x 100 Annualized ROI% = ((Return / Investment)^(1/Years) - 1) x 100

⚖ Break-Even Calculator

Break-Even Units--
Break-Even Revenue--
Contribution Margin / Unit--
Contribution Margin %--
Formula
Contribution Margin = Price - Variable Cost Break-Even Units = Fixed Costs / Contribution Margin Break-Even Revenue = Break-Even Units x Price

✂ Discount Calculator

Amount Saved--
Final Price--
Formula
Amount Saved = Original Price x (Discount% / 100) Final Price = Original Price - Amount Saved

☈ Sales Tax Calculator

Tax Amount--
Total (incl. Tax)--
Formula
Tax Amount = Pre-Tax Amount x (Tax Rate% / 100) Total = Pre-Tax Amount + Tax Amount

⏰ Hourly Rate Calculator

Pre-Tax Income Needed--
Total Billable Hours / Year--
Required Hourly Rate--
Formula
Pre-Tax Income = (Desired Income + Expenses) / (1 - Tax% / 100) Total Billable Hours = Hours/Week x Weeks/Year Hourly Rate = Pre-Tax Income / Total Billable Hours

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Business Calculator FAQ

What is the difference between markup and profit margin?

Markup is the percentage added to the cost price to determine the selling price (based on cost). Profit margin is the percentage of the selling price that is profit (based on revenue). For example, a product costing $50 sold for $75 has a 50% markup but a 33.3% profit margin. Both are important business metrics, but margin gives a clearer picture of profitability relative to revenue.

How do I calculate ROI on a business investment?

ROI (Return on Investment) measures the profitability of an investment. Use our ROI calculator by entering your initial investment amount and the total return. The formula is: ROI = ((Return - Investment) / Investment) x 100. For investments spanning multiple years, the annualized ROI gives a better comparison by accounting for the time period.

What is a break-even analysis?

A break-even analysis determines the number of units you need to sell to cover all your costs (both fixed and variable). The break-even point is where total revenue equals total costs, meaning zero profit or loss. This is essential for pricing decisions, business planning, and understanding the minimum sales volume required for profitability.

How should I calculate my freelance hourly rate?

Your hourly rate should account for your desired take-home income, business expenses (software, equipment, insurance), self-employment taxes, and non-billable time (admin, marketing, time off). Our hourly rate calculator factors in all of these to give you a realistic rate. Most freelancers can bill 25-30 hours per week, not 40, since the rest goes to running the business.

Are these business calculators accurate?

Yes, all calculations use standard financial formulas and run entirely in your browser. No data is sent to any server. These calculators are designed for quick business estimates and planning. For complex financial decisions or tax planning, always consult with a qualified accountant or financial advisor.