Business Calculators
Eleven free tools for pricing, profitability and growth decisions. Every calculator works in USD or CAD — flip the country toggle in the header and the currency follows you across the site.
- Profit Margin CalculatorTurn revenue and cost into gross margin percentage.
- Markup CalculatorSet a selling price from cost and target markup.
- Break-Even CalculatorFind the sales volume where you stop losing money.
- Discount CalculatorSee the sale price and what the discount costs you.
- Sales Commission CalculatorWork out commission owed on any deal or period.
- Hourly Rate CalculatorConvert a target salary into an hourly billing rate.
- Freelance & Contractor Rate CalculatorPrice contract work with tax, benefits and downtime built in.
- Inventory Turnover CalculatorMeasure how fast stock converts into sales.
- Customer Acquisition Cost (CAC) CalculatorFind what one new customer really costs to win.
- Customer Lifetime Value (LTV) CalculatorEstimate the total profit one customer brings.
- Net Profit CalculatorRevenue minus every cost — the real bottom line.
Guides for these calculators
See worked examples and learn which inputs to use before trying the tools.
- Margin vs markup: the pricing mistake that quietly costs you money
They use the same two numbers and produce different answers. Confusing them is the most common pricing error in small business — and it always errs in the direction of undercharging.
- Break-even point formula: units, sales revenue and examples
Most people calculate break-even once, write it on a whiteboard and never use it again. The number is only half the value — the contribution margin behind it is what tells you which lever to pull.
- What to charge as a freelancer: turning a salary into an hourly rate
The instinct is to take the salary you want and divide by 2,080. That number is roughly half of what you actually need to charge, and the gap is where freelance businesses quietly fail.
- CAC and LTV: the two numbers that tell you if growth is working
Spending money to get customers is only sensible if those customers are worth more than they cost. Two numbers settle it — and both are easy to calculate flatteringly.
- Inventory turnover: what a good number actually looks like
Inventory is cash you have chosen to keep in the shape of boxes. Turnover tells you how quickly it becomes cash again — and there is such a thing as too fast.
- When you must register for GST/HST: the $30,000 rule explained
The threshold is $30,000 — but it is not $30,000 in a calendar year, and missing that distinction is how businesses end up owing tax they never collected.
Estimates only. Results from this calculator are for general informational purposes and are not tax, legal, accounting or financial advice. Rates change and individual circumstances vary — confirm figures with the CRA, the IRS, your state or provincial authority, or a licensed professional before acting on them.
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