Business Calculator Guides

Step-by-step guides for every calculator on this site, with worked examples.

Profit Margin Calculator

Enter your revenue and total cost to see how much profit a product, service, or business makes, and what share of revenue that profit represents.

Formula: Profit = Revenue - Cost. Profit margin = (Profit / Revenue) x 100. Markup = (Profit / Cost) x 100.

1. Enter total revenue for the period or product.
2. Enter total cost, including materials, labor, and direct expenses.
3. Click Calculate Profit Margin.
4. Compare the margin with your target and with past periods.
5. Copy the result for your records or pricing review.

VAT Calculator

Use this calculator when a price is quoted without VAT and you need the total, or when a total already includes VAT and you need the net price and VAT amount separately.

Formula: VAT amount = Net price x VAT rate. Gross price = Net price + VAT amount. Net price = Gross price / (1 + VAT rate).

1. Choose whether to add VAT or remove VAT.
2. Enter the price and the VAT rate as a percentage.
3. Click Calculate VAT.
4. Read the net price, VAT amount, and gross price.
5. Copy the result for your invoice or quote.

Sales Tax Calculator

Plan a purchase, quote a customer, or check a receipt with this US sales tax calculator. It handles quantity, so it works for single items and bulk orders.

Formula: Subtotal = Price x Quantity. Sales tax = Subtotal x Tax rate. Total = Subtotal + Sales tax.

1. Enter the price per item.
2. Enter the quantity.
3. Enter the sales tax rate for the buyer's location.
4. Click Calculate Sales Tax.
5. Check the subtotal, tax, and total before you pay or quote.

ROI Calculator

Compare an investment, a marketing campaign, or a new piece of equipment by its return on investment. Enter what you put in and what you got back.

Formula: Net profit = Gain - Investment. ROI = (Net profit / Investment) x 100.

1. Enter the total amount invested.
2. Enter the total gain or return received.
3. Optionally enter the number of years for an annualized view.
4. Click Calculate ROI.
5. Compare the result with other opportunities before deciding.

Break-Even Calculator

Find the sales level where a product or business stops losing money and starts making profit. This is the first number to check before launching a product or signing a lease.

Formula: Contribution per unit = Price per unit - Variable cost per unit. Break-even units = Fixed costs / Contribution per unit. Break-even revenue = Break-even units x Price per unit.

1. Enter your fixed costs, such as rent and salaries, for the period.
2. Enter the selling price per unit.
3. Enter the variable cost per unit, such as materials and packaging.
4. Click Calculate Break-Even.
5. Compare the result with realistic monthly sales.

Discount Calculator

Check a sale offer before you buy, or set a promotion price before you sell. Enter the original price and the discount to see the final price and how much is saved.

Formula: Savings = Original price x Discount percentage / 100. Sale price = Original price - Savings.

1. Enter the original price.
2. Enter the discount percentage.
3. Click Calculate Discount.
4. Check the sale price and the amount saved.
5. Copy the result for a price tag or shopping list.

Business Growth Calculator

Measure how fast revenue, customers, or sales have grown over time, and express that growth as a compound annual rate that can be compared across businesses.

Formula: Total growth = ((Ending value - Starting value) / Starting value) x 100. CAGR = ((Ending / Starting) ^ (1 / Years) - 1) x 100.

1. Enter the starting value, such as revenue in the first year.
2. Enter the ending value in the latest year.
3. Enter the number of years between the two values.
4. Click Calculate Growth.
5. Compare the CAGR with your target and with competitors.