Mathematics & calculation

Rule of Three Calculator: Cross Multiplication and Ratios

Solve a direct or inverse rule of three with the cross multiplication shown step by step, simplify an A:B ratio and scale it up or down.

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<div
  class="bethemesh-widget"
  data-tool="rule-of-three-calculator"
  data-lang="en"
  data-theme="auto"
  data-min-height="600"
  data-max-height="1100"
  data-sandbox="allow-scripts allow-same-origin"
  data-allow="clipboard-write"
></div>
<script src="https://bethemesh.com/widgets/v1/bethemesh.js" async></script>
<p style="margin:6px 0 0;font:12px/1.4 system-ui,sans-serif">Free tool by <a href="https://bethemesh.com/en/tools/rule-of-three-calculator">Bethemesh</a></p>

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Rule of Three Calculator: Cross Multiplication and Ratios

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