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Free calculators and estimators that people actually use. Open any tool to use it, or grab the embed code for your website.

Freelancer Rate Calculator

Find the hourly rate you need to hit your income goal.

Startup Runway Calculator

See how many months of runway you have left.

Profit Margin Calculator

Calculate your profit before you set your price.

Project Quote Calculator

Estimate what you should charge for a client project.

Salary to Hourly Rate Calculator

Turn your annual or monthly pay into a real hourly rate.

Percentage Calculator

Calculate percentages without doing the math yourself.

Loan EMI Calculator

Calculate your monthly loan payment instantly.

GST Calculator

Add or remove GST from any price.

SIP Calculator

Estimate how your monthly SIP could grow over time.

Age Calculator

Calculate your exact age in years, months, and days.

Ask AI About Your Business

Let visitors ask ChatGPT, Claude, and more about you.

Discount Calculator

See what you actually pay after a discount.

Break-Even Calculator

Find how many units you need to sell to break even.

ROI Calculator

Work out the return on your spend or campaign.

VAT Calculator

Add or remove VAT from any price.

Which tool do you need?

Answer three questions to find the right calculator.

Which pricing model should you use?

Answer three questions to find the model that fits.

Want a calculator on your website?

Every Plainso tool comes with embed code. No sign-up required.

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