Small tools for big everyday tasks.
Practical online calculators and helpful guides for everyday work. Straightforward inputs, transparent explanations, and useful examples.
Actual results depend on your inputs. Open a calculator below to calculate your own estimate.
Explore our tools
Free tools with clear formulas and practical examples.
Profit Margin Calculator
Calculate profit, profit margin, and markup from revenue and cost.
Open calculator →Service Pricing Calculator
Estimate service pricing from hours, hourly rate, expenses, and markup.
Open calculator →Job Cost Calculator
Add labour, materials, and other expenses to estimate job cost.
Open calculator →Helpful articles
Guides and examples to help you use the tools with confidence.
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Designed to be clear and useful
Transparent explanations
Understand the formulas and assumptions behind each result.
Simple navigation
Move from categories to individual tools and guides without confusion.
Practical guidance
Use worked examples and notes to understand when an estimate may need review.