Fuel Economy & Speed
2 toolsConvert MPG to L/100km, km/h to mph, and acceleration rates across standard systems.
🛡️ クライアントサイド実行とプライバシー設計
すべてのツールは厳格なローカル専用（P0）プライバシー設計の下で動作します。外部サーバーへデータを送信することはありません。
🔒 データログ記録ゼロ
No tracking or database recording of your inputs, keys, or source documents.
⚡ 即時ローカル処理
Zero network latency or server queue delays. Output is rendered instantaneously.
🌐 オフライン対応
Continue working even during intermittent internet or offline environments.
Frequently Asked Questions
Are all Fuel Economy & Speed tools free?
Yes, 100% free with unlimited daily usage. There are no paywalls, subscriptions, or login requirements.
Is my data uploaded or stored anywhere?
Never. All operations happen in-memory inside your browser session. Once you refresh or close your browser tab, memory is cleared immediately.
Can I use these utilities on mobile or tablet?
Yes, all utilities are fully responsive and optimized for touch devices and small viewports without loss of functionality.
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