Tools
Free Business Tools
Calculators and planners for online business — freelance rates, affiliate earnings, store margins and startup costs, worked out in your browser.
What the tools do
Every tool on this site is a small calculator or planner that runs entirely in your browser. Nothing you type leaves your device — there is no account, no upload and no server that sees your numbers. Each tool shows its formula, explains its assumptions, and labels its output as an estimate or a scenario, never as a prediction.
Tools are built to answer one question well, with the maths visible. A freelance rate calculator shows the gross-up for platform fees. A dropshipping profit calculator shows the full cost stack — product, shipping, fees, advertising and refunds — instead of the price-minus-cost figure that misleads beginners.
All 38 tools, live now
Every tool below is live, each with its own page, its own worked example and links to the guide that explains the idea behind it. All 38 run entirely in your browser.
Freelancing tools
- Freelance Hourly Rate Calculator
- Freelance Tax Estimate Planner
- Freelance Project Pricing Calculator
- Freelance Proposal Builder
- Working Hours Calculator
- Client Payment Tracker
Affiliate marketing tools
- Affiliate Commission Calculator
- Affiliate Disclosure Generator
- Affiliate Campaign Planner
- Affiliate Conversion Calculator
- Affiliate ROI Calculator
Blogging and SEO tools
- Blog Profit Calculator
- Content ROI Calculator
- Keyword Grouping Utility
- Reading Time Calculator
- SERP Preview
- Internal Link Planner
YouTube and creator tools
- YouTube Revenue Scenario Estimator
- YouTube Engagement Calculator
- Video Duration Calculator
- Creator Sponsorship Rate Estimator
- Content Calendar Generator
- Social Media Caption Counter
Digital product tools
- Digital Product Pricing Calculator
- Print-on-Demand Pricing Calculator
- Discount Calculator
- Payment Fee Calculator
E-commerce tools
- Dropshipping Profit Calculator
- Customer Acquisition Cost Calculator
- Lifetime Value Calculator
- Shipping Cost Calculator
Business tools
- Startup Cost Calculator
- Sales Target Calculator
- Monthly Expense Planner
- Business Revenue Forecast
- ROI Calculator
- Compound Growth Calculator
- Business Model Comparison
How to use the tools
Start from the guide, not the tool. The guide explains the idea — what a rate is, what a margin is, what an attribution window does — and the tool does the arithmetic for your own numbers. Change the assumptions and watch the answer move: that is the point. A tool that gives one fixed answer without showing its inputs is not teaching anything.
Every tool validates what you type. Zero, negative, decimal, very large and empty values are handled with a clear message, not a crash or a nonsense result. If a tool needs a rate or a fee that changes over time, it asks you to enter it — it never hard-codes a platform’s fee as permanent.
An honest note on estimates
A calculator can only work with the numbers you give it. Supplier prices, advertising costs, platform fees and tax rates all change, and the calculator cannot know your costs. Treat every output as a planning scenario: useful for deciding whether an idea is worth testing, never as a promise of what you will earn. The financial disclaimer says the same in full.
Frequently asked questions
Are the tools free?
Yes. Every tool is free to use, with no account and no email required. They run in your browser, and nothing you type leaves your device.
When will the tools be ready?
All 38 tools are live, each paired with the guide that explains the idea behind it — including the freelance rate, affiliate commission, dropshipping profit and YouTube revenue tools.
Are the calculator results predictions?
No. They are scenarios built from assumptions you enter. Change the assumptions and the answer changes. A calculator shows what would happen if your numbers held — it cannot promise what will happen.
Do the tools store my data?
No. There is no server account and no upload. A tool that keeps a list — such as the client payment tracker — keeps it in your browser’s local storage only, and clearing your browser’s site data removes it.