Use this for a quick estimate: total = kWh × rate + fixed fees. For tiered pricing or time-of-use, treat the result as a rough baseline.
Tip: If your bill has tiered rates, split your usage into multiple runs (one per tier) and add them up.
Electricity cost calculator — Estimate an electricity bill from kWh, rate per kWh, and fixed fees. Shows per-day cost with optional billing days. Shareable, browser-only MVP.
Example: Use this tool to sanity-check numbers quickly, then share the link if you need to discuss with others.
FAQ: (1) Does it upload my data? No—runs in your browser. (2) Can I share results? Yes—use the share link feature. (3) Is it authoritative? Treat it as a convenience, not professional advice.
電費估算器 — 用「用電量 kWh × 單價」加上固定費用，快速估算電費；可選計費天數並顯示平均每天。可分享連結、純前端。
範例：用這個工具快速試算與對照結果，需要討論時再把連結分享給對方。
FAQ： (1) 會上傳資料嗎？不會，計算在瀏覽器內完成。 (2) 能分享結果嗎？可以，用分享連結。 (3) 準確嗎？請把它當作便利工具，不是專業建議。