住宅用ソーラー投資シミュレーター
将来の光熱費削減分をキャッシュフローとして扱い、投資判断に役立てます。
Time Value of Money (TVM) Calculator
Enter any four variables among N, I/Y, PV, PMT and FV, select the unknown variable and payment timing, then click Calculate.
This tool is for learning and estimation only and does not constitute any investment, loan or financial advice.
TVM Input Area
Payment Timing
Most loans and bonds use end-of-period payments; some rents and annuities use beginning-of-period payments.
Unknown Variable (to be calculated)
Make sure the other four variables are filled in clearly. Empty fields are treated as unknown.
Result
After filling in four variables and selecting the unknown variable, click "Calculate" to see the result here.
Sign convention: Positive numbers usually represent cash inflow (receive), and negative numbers represent cash outflow (pay). For example, taking out a loan: PV is positive (receive money), PMT is negative (repay each period).
This tool is implemented purely in the browser and does not store any data. All calculations are for teaching/learning and estimation only and do not constitute any investment or lending recommendation.
太陽光発電パネル投資回収期間計算機
設置費用と年間の電気代節約額から、投資回収期間と総合的なリターンを計算します。
一般的な使用例
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