toolmallow.

Make it local

Choose defaults for supported calculators. You can mix a region, units and currency.

Changing units converts supported measurements. Changing currency relabels amounts; it does not exchange money. Tax rules, tariffs and broker rates remain your inputs.

Only these preferences are saved in this browser. Calculator inputs are not saved.
EXPLORE / SMALL BUSINESS

Small business

Make the price assumptions visible.

Estimate break-even units and reverse a fee calculation before planning a price.

A useful place to start

  1. Choose the tool for the specific task you are planning.

  2. Check the units and replace example figures with relevant inputs.

  3. Review the assumptions, supporting values and linked guide before acting.

THE TOOLKIT

Choose the right tool for the job.

2 tools · Local processing
IN PRACTICE

Connect the steps.

A 3% fee on the final charge is not reversed by simply adding 3% to the desired net. Use the actual fee basis and verify settlement rules.

GO A LITTLE DEEPER

Guides for the next step.

All guides ↗

Know the limits.

Generic arithmetic only. Actual tax treatment, platform fees, rounding rules and business circumstances differ.

How we explain methods and sources →

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