Free calculators for contractors

Yes! All 21 calculators on Invoice Fly are free to use. You don’t need to create an account, sign up, or pay for a subscription. Simply choose a calculator, enter your numbers, and get an estimate to help with job pricing, material costs, profit margins, taxes, pay, or business expenses.

Markup and profit margin both measure profitability, but they use different starting points.

Markup measures profit as a percentage of your cost, while profit margin measures profit as a percentage of your selling price.

For example, say a job costs you $100 and you charge your client $125. Your profit is $25. That’s a 25% markup on your cost, but a 20% profit margin on the selling price.

Use Invoice Fly’s Markup Calculator to work out what to charge based on your costs, or the Profit Margin Calculator to see how much of your selling price you actually keep after expenses. You can also read our guide to Margin vs. Markup to understand the difference.

Start with the Service Price Calculator to add up labor, materials, and overhead and work out what to charge your client.

You can also choose a calculator for the type of work you do:

• House Cleaning Cost Calculator: Estimate cleaning prices based on home size and service.
• Lawn Care Cost Calculator: Work out pricing for mowing and other yard work.
• Paint Cost Calculator: Estimate paint, labor, and total room costs.
• Roofing Cost Calculator: Calculate roofing costs based on roof size and materials.
• Concrete Calculator: Work out how much concrete your project needs.
• Drywall Calculator: Calculate the number of drywall panels needed for a room.

Once you have your costs, use the Profit Margin Calculator to check how much you could make and the Markup Calculator to set your selling price. This helps you prepare a quote that covers your expenses and leaves room for profit.

Your break-even point is the point at which your sales cover your total business costs. You haven’t made a profit yet, but you aren’t losing money either.

To calculate it, you need to know your fixed costs, such as rent, insurance, and equipment payments, along with your variable costs and selling price. Invoice Fly’s Break-even Point Calculator helps you work out how much you need to sell to cover those expenses.

For contractors, this can help you understand how many jobs you need to complete or how much revenue you need to bring in before you start making a profit.

It depends on whether you’re calculating tax for a client invoice or estimating the taxes you owe on your own income.

• Sales Tax Calculator: Add sales tax to a price or work backwards to find the amount before tax.
• VAT Calculator: Add or remove VAT from an estimate, invoice, or other amount.
• 1099 Tax Calculator: Estimate self-employment taxes based on your income as an independent contractor.
• IRS Estimated Tax Calculator: Work out how much you may need to pay in quarterly estimated taxes.

Choose the calculator that matches your tax situation and location. Tax rules can vary, so check your figures with an accountant before filing or making tax payments.

Invoice Fly’s calculators provide estimates based on the figures you enter. They’re useful for planning job costs, setting prices, checking profit margins, calculating material quantities, and preparing for tax payments.

The results depend on accurate information and the assumptions used by each calculator. Actual costs, tax obligations, and payment amounts may differ. Use the results as a guide, and verify important financial or tax calculations with a qualified professional before making a final decision.

Yes! Invoice Fly’s calculators run directly in your browser, so you can use them on your phone, tablet, or computer without downloading an app or installing additional software.

Whether you’re measuring a room, pricing a cleaning job, checking material costs, or working out your profit, you can enter your figures and calculate the numbers wherever you are.

Once you’ve worked out your job costs and selling price, use Invoice Fly’s free Estimate Generator or Invoice Generator to prepare a document for your client.

Add the client details, describe the work, enter your quantities and prices, and download the finished PDF. You can then email it to your client or print a copy for your records.

For a more complete invoicing workflow, the Invoice Fly app lets you save client details, create and send estimates and invoices from your phone, collect e-signatures, and accept online payments.