流動比率
Current Ratio / カレント・レシオ
The current ratio measures short-term liquidity by comparing current assets to current liabilities.
Current ratio is calculated as current assets divided by current liabilities. It indicates whether a firm can meet obligations due within a year using near-term assets such as cash, receivables, and inventory. A very high ratio may signal inefficient asset use, so industry context is essential.
Current Ratio should be calculated with a stable numerator, denominator, and time window. Formula | Current Ratio = Current Assets / Current Liabilities | Use it to judge short-term liquidity and working-capital pressure. Time window | Use the same period for every comparison | Prevents artificial movement Segment | Calculate by plan, market, cohort, or owner when useful | Reveals where the change came from
| Lens | Formula / treatment | When to use it |
|---|---|---|
| Formula | Current Ratio = Current Assets / Current Liabilities | Use it to judge short-term liquidity and working-capital pressure. |
| Time window | Use the same period for every comparison | Prevents artificial movement |
| Segment | Calculate by plan, market, cohort, or owner when useful | Reveals where the change came from |
The boundary of Current Ratio must be written before it is used as a KPI. Include | Recurring and comparable inputs that match the definition | Keeps trend analysis reliable Exclude | One-off, unmatched, or non-comparable items | Avoids inflated or misleading movement Document | Data source, owner, refresh timing, and exception rules | Makes reviews reproducible
| Item | Treatment | Why it matters |
|---|---|---|
| Include | Recurring and comparable inputs that match the definition | Keeps trend analysis reliable |
| Exclude | One-off, unmatched, or non-comparable items | Avoids inflated or misleading movement |
| Document | Data source, owner, refresh timing, and exception rules | Makes reviews reproducible |
Current Ratio changes because the underlying operating drivers change. Volume | More or fewer units, users, customers, or transactions | Explains scale effects Mix | Change in segment, plan, product, or channel composition | Explains quality of growth or decline Efficiency | Better conversion, retention, cost control, or process discipline | Explains operating improvement
| Driver | Metric impact | What to watch |
|---|---|---|
| Volume | More or fewer units, users, customers, or transactions | Explains scale effects |
| Mix | Change in segment, plan, product, or channel composition | Explains quality of growth or decline |
| Efficiency | Better conversion, retention, cost control, or process discipline | Explains operating improvement |
Assesses short-term solvency and working-capital needs. Identifies whether inventory or receivables management requires attention. Supports credit terms negotiations with lenders or suppliers.
- Assesses short-term solvency and working-capital needs.
- Identifies whether inventory or receivables management requires attention.
- Supports credit terms negotiations with lenders or suppliers.
- Define current assets and liabilities consistently for accuracy.
- Inventory quality affects how meaningful the ratio is.
- Receivables collection speed can change the ratio quickly.
- Compare against industry norms rather than a single rule.
- Use alongside cash-flow metrics for better insight.
Do not read Current Ratio alone. Compare with companion metrics before changing budget or targets. Check whether the movement came from real performance or definition drift. Avoid optimizing the metric in a way that harms customer quality or long-term value.
- Compare with companion metrics before changing budget or targets.
- Check whether the movement came from real performance or definition drift.
- Avoid optimizing the metric in a way that harms customer quality or long-term value.
Read Current Ratio together with metrics that explain quality, scale, and risk. Growth metric | Shows direction | Explains whether the trend is improving Efficiency metric | Shows cost or effort | Explains whether the result is economical Risk metric | Shows volatility or concentration | Explains whether the result is durable
| Metric | Role | Why read together |
|---|---|---|
| Growth metric | Shows direction | Explains whether the trend is improving |
| Efficiency metric | Shows cost or effort | Explains whether the result is economical |
| Risk metric | Shows volatility or concentration | Explains whether the result is durable |
A retailer shows a current ratio of 1.9 but holds slow-moving inventory. After tightening inventory management and improving collections, the ratio drops to 1.5 while cash flow improves. The business becomes more resilient despite the lower ratio. The team reviews outcomes with stakeholders and updates the plan, which stabilizes results over time.
Compare Current Ratio with adjacent concepts before deciding. Current Ratio | Current concept | Use when the team needs the primary decision lens Adjacent metric or framework | Supporting lens | Use when the team needs evidence or process detail General vocabulary | Broad explanation | Use only for orientation, not final decision-making
| Metric | Difference | Why read together |
|---|---|---|
| Current Ratio | Current concept | Use when the team needs the primary decision lens |
| Adjacent metric or framework | Supporting lens | Use when the team needs evidence or process detail |
| General vocabulary | Broad explanation | Use only for orientation, not final decision-making |
- A higher ratio always means healthier liquidity.
- A ratio below 1 always signals failure.
- Cash flow analysis is unnecessary if the ratio is strong.
When should I use Current Ratio?
Use it when the team needs to decide scope, priority, owner, or trade-off, not when it only needs a short definition.
What makes Current Ratio useful in practice?
It becomes useful when it is tied to evidence, a decision owner, and a concrete next operating choice.
What should I avoid?
Avoid using the term as a label without clarifying assumptions, boundaries, and how success will be judged.