Break-even Calculator|盈亏平衡点计算器

盈亏平衡点计算器 | Break-even Calculator

盈亏平衡点计算器 Break-even Calculator

用两种常见方式估算“回本 / 盈亏平衡”所需条件:
项目/生意模型(固定成本 + 单价/变动成本)→ 计算回本销量与回本营收;
投资回本模型(投入金额 + 每期净现金流)→ 估算回本周期。
Estimate break-even conditions in two common modes: (1) business unit economics; (2) investment payback period.

1. 输入参数 · Inputs
项目/生意:适合产品、课程、订阅、门店、活动等“卖多少份能回本”的问题。
投资:适合“投入多少钱、每月/每年净现金流多少,多久回本”。
Business mode answers: how many units / how much revenue to break even. Investment mode answers: how long to pay back.
固定成本通常与销量无关:房租、设备、人员底薪、软件订阅、推广基础费用等。
Fixed costs do not change with units sold (rent, base salary, subscriptions, setup marketing, etc.).
每卖出 1 份/1 单位带来的“含税/不含税收入”,请按你的口径一致即可。
Revenue per unit. Keep your pricing and cost basis consistent (tax-included or not).
随销量变化的成本:原材料、包装、物流、平台抽成、单次交付成本、渠道佣金等。
Costs that increase with each unit sold (materials, shipping, platform fees, commissions, etc.).
如果你希望“回本 + 赚到某个利润”,填写这里;工具会计算达到该利润所需的销量与营收。
If you want break-even plus a profit goal, enter it here. The tool will compute required units & revenue.
这不是回本计算的必填项。填了之后,工具会额外告诉你“按该销量会赚/会亏多少”。
Optional. If provided, the tool will also estimate profit/loss under your planned units.
3. 使用说明 · Notes
✅ 你在算什么?What are you calculating?
盈亏平衡点(Break-even Point)指:在某个销量/营收/时间点上,累计收入刚好覆盖累计成本(利润=0)。
Break-even means the point where total revenue equals total costs (profit = 0).
① 项目/生意模式:销量回本 Business Mode
  • 核心概念是单位贡献毛利(Contribution Margin)
    单位贡献毛利 = 单价 – 变动成本
    Contribution margin per unit = Price per unit – Variable cost per unit.
  • 单位贡献毛利 ≤ 0 时,理论上“越卖越亏”,无法回本:你需要提高价格、降低变动成本、或重新定义“单位”。
    If contribution margin ≤ 0, each unit loses money, so break-even is impossible unless you change price/cost structure.
  • 工具默认计算“刚好回本(利润=0)”所需销量;如果你填了“目标利润”,则算的是“回本+达到目标利润”的销量。
    By default we compute units for profit=0. If target profit is set, we compute units needed to reach that profit.
  • 建议:把“固定成本”拆成几类(租金/人力/设备/推广),你会更清楚哪一块最值得优化。
    Tip: break fixed costs into buckets (rent, labor, tools, marketing) to see what matters most.
② 投资模式:周期回本 Investment Mode
  • 最简单的回本周期:回本期 ≈ 投入金额 ÷ 每期净现金流
    Simple payback period ≈ Initial investment ÷ Net cashflow per period.
  • 如果每期净现金流 ≤ 0,那么它不是“回本模型”,而更像“成本消耗/亏损项目”,需要先让现金流为正。
    If net cashflow ≤ 0, payback cannot happen unless cashflow becomes positive.
  • “增长率”是为了做更贴近现实的粗估:比如生意逐月增长、租金逐年上涨、或现金流随规模扩大。
    Growth rate allows a rough simulation (cashflow rising over time).
  • 注意:这里的“回本”只关注现金流累计,不等同于净现值(NPV)、内部收益率(IRR)。如果你要比较多个投资方案优劣,通常还需要折现率/风险假设。
    Payback focuses on cash recovery, not NPV/IRR. For comparing investments, discount rate and risk assumptions are usually required.
⚠️ 重要提醒 Important disclaimers
  • 本工具用于估算与学习,不构成任何投资/经营建议。For estimation/education only, not financial advice.
  • 现实中还可能存在:税费、退款率、坏账、库存损耗、价格弹性、季节波动、资金时间价值等。Real-world factors: taxes, refunds, defaults, shrinkage, seasonality, time value of money, etc.
  • 建议你用“乐观/中性/悲观”三套参数各算一次,把结果当作决策区间,而不是单点答案。Run optimistic/base/pessimistic scenarios to get a decision range, not a single-point answer.