12 free tools

Business calculators

Check pricing, discounts, costs and simple business maths.

Business

GST Calculator

Add GST to a base amount or remove GST from an inclusive price.

Business

Discount Calculator

Find a sale price after one or two successive discounts.

Business

Profit Margin Calculator

Express profit as a percentage of revenue.

Business

Markup Calculator

Set a price by adding a percentage to cost, then see the corresponding margin.

Business

Break-even Calculator

Find the whole number of units needed to cover fixed and variable costs.

Business

Commission Calculator

Calculate a flat percentage commission plus an optional fixed amount.

Business

ROI Calculator

Compare a total amount returned with an investment’s full cost.

Business

Profit Calculator

Subtract total costs from revenue and identify a profit or loss.

Business

Revenue Calculator

Estimate gross sales from a unit price and the number of units sold.

Business

Percentage Change Calculator

Measure an increase or decrease between an original value and a new value.

Business

Unit Price Comparison

Compare two package prices using quantities measured in the same unit.

Business

Invoice Total Calculator

Check a single line’s quantity, discount and user-entered tax.

CalcDost Circle

A little maths. A little togetherness.

Your elephant and username are all anyone sees. Your email stays private.

Save to my space

This saves the inputs privately on your profile. Nothing is shared with the community.

Your people

Only you can see this. Leap-day birthdays use 28 February in other years.

Compare with a friend

The link contains this result and your elephant colour. Your inputs, birth dates and private plan name are excluded. Anyone with the link can read the result.