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ToolGrym

Money math, shown in full.

Free calculators for loans, savings, retirement, and income. Every result comes with the formula, a worked example, and zero sign-ups — so you can check the math yourself.

  • Formula shown on every tool
  • Math verified against known values
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Mortgage · worked example

Loan amount
$300,000
Term
30 years
Rate (APR)
6.5%
Monthly payment
$1,896.20

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