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What to include
- Corrections. If a number, formula or data source looks wrong, tell us which calculator or guide and what you expected to see. Screenshots help.
- Calculator requests. Tell us the question you're trying to answer. Most of our calculators started as someone's specific question.
- Site issues. Include your browser and device if a calculator isn't loading or displaying correctly.
What we can't help with
We can't give personal financial, tax or legal advice, review your specific situation, or recommend investments. For that, a fee-only financial planner, CPA or attorney is the right person to ask. Please don't email us account numbers, Social Security numbers or other sensitive personal information.