ToolForge

期待値計算機

Expected value calculator: enter probabilities and payoffs to get expected value, variance and std dev with decision tree for probabilistic decisions.

使い方

勝率、利益額、損失額を入力すると、期待値と損益分岐点が自動計算されます。

Overview

Expected Value Calculator is an Utilities tool. Enter probabilities and payoffs to get expected value, variance and std dev with decision tree for probabilistic decisions. It runs 100% in your browser with no upload, so you get instant results with privacy. Whether you need a quick answer or batch processing with precise control, you can enter, validate and export in seconds. The UI is responsive on mobile, tablet and desktop and supports one-click copy.

Use cases

  • Daily use of Expected Value Calculator: Enter win probability, win amount and loss amount to get EV and the break-even point. — enter and get instant results without manual lookup.
  • One-click copy keeps results ready to save, check or share with family and pros.
  • Use Expected Value Calculator offline or on poor network — all calculations stay local and private.
  • Billing and countdowns
  • Study verification and notes

How to use

  1. 1 Enter win probability, win amount and loss amount to get EV and the break-even point..
  2. 2 Tweak parameters or switch options for live updates.
  3. 3 Review values, units and charts to confirm precision.
  4. 4 Copy or export the result for docs, sheets or sharing.

Highlights

  • Local & private: processing stays in your browser
  • Live validation with tolerant parsing
  • One-click copy and export for docs, code or sheets
  • Batch and offline support under poor network

Notes

  • For reference only; consult professionals for medical/legal/finance
  • Process sensitive data locally
  • Refresh if stuck and contact us if persists

FAQ

Data saved?
Only the last input cached locally.
Need sign-up?
No, open and use.
How is Expected Value Calculator different?
It runs locally with a focus on speed and privacy, plus tolerant parsing for “expected value, EV” and one-click copy for reuse.
Can I use results in official reports?
Use it as a working draft and cross-check with authoritative sources; keep the exported log and parameters for traceability.
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すべての計算はブラウザ内で実行され、データはアップロードされません。