Updated for 2026 • All calculators free • No signup required
For business planning in 2026, the essential calculators are break even (when you'll be profitable), margin (pricing for profit), and startup costs (how much you need to launch). Boring Math's Break Even Calculator shows exactly how many units or how much revenue covers your costs. For SaaS businesses, the SaaS Metrics Calculator tracks MRR, churn, LTV, and CAC. For hiring, the Employee Cost Calculator shows the true cost beyond just salary. All calculators are free with no signup.
Calculates how many units you need to sell or how much revenue you need to cover fixed and variable costs.
Best for: Anyone launching a product or service and needing to know when they'll become profitable.
Open calculator →Calculates profit margin, markup, cost, and revenue from any two known values, with gross and net margin breakdowns.
Best for: Business owners setting prices or analysing profitability.
Open calculator →Calculates key SaaS metrics including MRR, ARR, LTV, CAC, churn rate, and LTV:CAC ratio from your subscription data.
Best for: SaaS founders and operators tracking unit economics.
Open calculator →Estimates total startup costs across categories like equipment, legal, marketing, rent, and working capital.
Best for: Entrepreneurs writing a business plan or applying for funding.
Open calculator →Helps set product or service prices based on cost, target margin, competitor pricing, and perceived value.
Best for: Business owners who want to price for profit rather than guessing.
Open calculator →Calculates the true cost of hiring an employee beyond salary, including NI, pension, benefits, equipment, and overhead.
Best for: Small business owners estimating total headcount costs.
Open calculator →Calculates per-unit cost for a production batch including materials, labour, and overhead, useful for makers and manufacturers.
Best for: Small manufacturers, bakers, or crafters calculating product unit costs.
Open calculator →| Calculator | Best for | Free | No account needed | Updated 2026 |
|---|---|---|---|---|
| Break Even Calculator | Anyone launching a product or service and needing to know when they'll become profitable | Yes | Yes | Yes |
| Margin Calculator | Business owners setting prices or analysing profitability | Yes | Yes | Yes |
| SaaS Metrics Calculator | SaaS founders and operators tracking unit economics | Yes | Yes | Yes |
| Startup Cost Calculator | Entrepreneurs writing a business plan or applying for funding | Yes | Yes | Yes |
| Pricing Calculator | Business owners who want to price for profit rather than guessing | Yes | Yes | Yes |
| Employee Cost Calculator | Small business owners estimating total headcount costs | Yes | Yes | Yes |
| Batch Cost Calculator | Small manufacturers, bakers, or crafters calculating product unit costs | Yes | Yes | Yes |
Divide your total fixed costs by the difference between selling price per unit and variable cost per unit. For example, if your fixed costs are £10,000 per month, you sell at £50 per unit, and each unit costs £20 to produce, your break even is 10,000 / (50 - 20) = 334 units per month. The Break Even Calculator handles this instantly and shows a chart of profit vs volume.
Margin is profit as a percentage of the selling price. Markup is profit as a percentage of the cost. If you buy something for £60 and sell it for £100, your margin is 40% (£40 / £100) but your markup is 66.7% (£40 / £60). They describe the same profit in different terms. The Margin Calculator converts between the two so you can price consistently.
The core SaaS metrics are MRR (monthly recurring revenue), churn rate (percentage of customers leaving each month), LTV (lifetime value of a customer), CAC (cost to acquire a customer), and the LTV:CAC ratio. A healthy SaaS business has a churn rate below 5%, an LTV:CAC ratio above 3:1, and growing MRR. The SaaS Metrics Calculator computes all of these from your subscription data.
It varies enormously by type. Registering a company with Companies House costs £12 online. A home-based service business can launch for under £500. A physical retail business typically needs £10,000-£50,000 for lease, fit-out, stock, and working capital. The Startup Cost Calculator walks you through each category so you build a realistic total before you commit.
Start with your cost per unit, add your target profit margin, then check that price against competitors and what customers are willing to pay. Cost-plus pricing ensures you cover costs, but value-based pricing (what the customer believes it is worth) usually delivers higher margins. The Pricing Calculator lets you model both approaches side by side.
The true cost of an employee in the UK is typically 1.25 to 1.4 times their gross salary. On top of salary you pay employer National Insurance (15% above the secondary threshold from April 2025), pension contributions (minimum 3%), plus costs for equipment, software, training, office space, and recruitment. For a £35,000 salary, the total cost is usually £44,000-£49,000 per year. The Employee Cost Calculator breaks this down line by line.
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