SIP 定投计算器
新测算 SIP 定投与一次性投资收益,拆分本金与收益。
Year-by-year breakdown ›
| Year | Total invested | Est. gains | Value |
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For education and planning only — not financial advice. SIPs and lumpsum investments are market-linked: values rise and fall and you can lose money. Projections assume a constant return that real markets will not deliver, and ignore fees, taxes and inflation unless you account for them. Check important decisions with a qualified financial professional.
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SIP计算器:预测您的每月投资
SIP(系统投资计划)是指定期(通常每月)向基金投入固定金额。未来价值公式为:FV = P × [((1+i)^n − 1) / i] × (1+i),其中 P = 月投资额,i = 月收益率,n = 月数。计算器即时显示已投资金额、预期收益和预测终值。
这与西方市场常见的定投(DCA,Dollar Cost Averaging)概念完全相同。同样的逻辑适用于定期向ETF、退休基金或储蓄计划投入资金。
SIP vs. 一次性投资(Lumpsum)
如果市场在投资后立即上涨,一次性投资能产生更多价值。SIP通过时间分散投资,降低了在市场高点一次性入市的风险。
在市场波动较大时,历史数据显示SIP通常表现优于一次性投资。本计算器可用相同参数对比两种方案。
阶梯式SIP:每年增加投入
阶梯式SIP(Step-Up SIP)每年将月投资额提高固定比例——通常为5%至15%。如果您的工资每年增长10%,同步增加SIP投入可在保持相同相对负担的同时显著加速财富积累。
示例:每月投入1,000元,年收益率12%,坚持20年,可积累约96万元。若每年增加10%投入,结果可能接近翻倍。
目标模式:需要投多少才能实现目标?
目标模式将公式反转:设定目标金额,计算器告诉您每月需要投入多少。
适用于规划退休、紧急备用金、购房首付或子女教育资金。调整期限或预期收益率,查看所需月投额的变化。
Frequently asked questions
SIP是什么,如何运作?
SIP是指每月将固定金额投入基金。价格低时购入更多份额,价格高时购入较少——由此实现平均购买成本。长期来看,复利效应可显著放大收益。
SIP未来价值的公式是什么?
FV = P × [((1+i)^n − 1) / i] × (1+i)(P=月投资额,i=月收益率(年利率÷12÷100),n=月数)。示例:每月500元,年收益率12%,10年后 → FV ≈ 11.6万元。
应该用什么收益率?
全球指数基金历史年收益约7–10%(税前,扣除通胀前)。股票基金可用10–12%,债券基金用4–7%。保守估计用8%,乐观估计用12%。过去收益不代表未来表现。
SIP和DCA有什么区别?
本质相同。DCA(Dollar Cost Averaging/定投)是西方市场术语;SIP是在印度流行的定期基金投资名称。两者都指定期投入固定金额以摊平购买成本。
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