Startup Runway Calculator
Free startup Runway Calculator: runway (months) = cash balance ÷ monthly net burn with live results, benchmarks and 15 FAQs.
$240,000 cash divided by $20,000 monthly burn gives 12 months of startup runway — know it monthly.
Apply Runway (months) = Cash Balance ÷ Monthly Net Burn to when to fundraise, cut, or push for breakeven. Live, free, no sign-up.
- Worked example: $240,000 cash divided by $20,000 monthly burn gives 12 months of startup runway
- 12.0 months (1.00 yrs)
- Source: Worked example
- Failed firms citing cash-flow mismanagement as a cause
- 82% of failures
- Source: U.S. Bank study
- Median cash conversion cycle for US mid-market firms
- 48 days
- Source: Hackett Group
- Average days sales outstanding for US businesses
- 38 days
- Source: Atradius Payment Practices
Interactive Calculator
Enter your numbers — every result below updates instantly. Free forever, no sign-up.
Calculator inputs
Cash on hand right now.
Average monthly cash outflow net of revenue.
Live results
Visual Price & Profit Breakdown
See exactly where every dollar of your selling price goes — costs, fees, and the profit you keep.
- Months funded$12.00 (50.0%)
- Gap to 24-mo target$12.00 (50.0%)
Green covers 12 funded months against a 24-month target — half the ideal early-stage cushion.
Key Takeaways
The 30-second version — the exact answers Google loves to feature.
- 1Runway (months) = Cash Balance ÷ Monthly Net Burn. On the worked case, $240,000 cash divided by $20,000 monthly burn gives 12 months of startup runway.
- 2A healthy reading: 12–18 months after a raise; act when runway falls below 6 months.
- 3Runway in years: Years = Runway Months ÷ 12.
- 4Burn rate is monthly spend speed; runway converts it into months of survival.
- 5Review monthly and assign one owner per input — sales, ops, and finance each move part of runway.
Business Statistics That Shape Smart Pricing
Benchmarks from widely-cited industry research. Use them to sanity-check your margins, fees, and conversion assumptions.
- Worked example: $240,000 cash divided by $20,000 monthly burn gives 12 months of startup runway
- 12.0 months (1.00 yrs)
- Source: Worked example
- Failed firms citing cash-flow mismanagement as a cause
- 82% of failures
- Source: U.S. Bank study
- Median cash conversion cycle for US mid-market firms
- 48 days
- Source: Hackett Group
- Average days sales outstanding for US businesses
- 38 days
- Source: Atradius Payment Practices
- Operating-expense cash reserve target for small firms
- 3–6 months
- Source: U.S. SBA guidance
Pricing Plans Compared: Which Strategy Fits Your Business?
Three proven pricing plans for this calculator's niche. Match the plan to your stage, then plug its margin target into the calculator above.
Starter Plan — Measure
Best for: new businesses learning their runway
- Price rule: Track Runway (months) = Cash Balance ÷ Monthly Net Burn monthly in a simple sheet
- Margin target: Hold the current baseline; flag any 10% adverse move
- Fees: One channel, card fees and taxes loaded
Growth Plan — Optimize
Best for: scaling firms pushing runway
- Price rule: Reset terms, stock, and targets quarterly off this calculator
- Margin target: Improve the headline metric 5–10% per quarter
- Fees: Marketplace, payment, and financing costs fully loaded
Scale Plan — Systemize
Best for: multi-product and multi-channel operators
- Price rule: Automate runway alerts per SKU, customer, and channel
- Margin target: Top-quartile benchmark with mix shift
- Fees: Landed cost, storage, returns, and tax handling
Industry Benchmarks: Typical Margins & Markups
Compare your numbers against common verticals before you lock a price. Your required markup must cover overhead plus target profit.
| Industry | Typical net margin | Typical markup | Notes |
|---|---|---|---|
| Retail | 2–5% net cash margin | 30–45 day CCC | Thin margins; cash health comes from fast stock turns and tight receivables. |
| Wholesale / Distribution | 1.5–4% net cash margin | 45–65 day CCC | Volume game — negotiate supplier terms to offset long customer collection. |
| Restaurants & Cafes | 3–6% net cash margin | 7–15 day CCC | Mostly cash sales; watch weekly payroll and food-supplier outflows. |
| Professional Services | 8–15% net cash margin | 35–55 day CCC | Payroll-heavy; milestone billing and deposits keep operating cash positive. |
| Manufacturing | 4–9% net cash margin | 60–90 day CCC | Inventory and CapEx absorb cash; stage payments and safety-stock discipline matter. |
| SaaS / Subscriptions | 10–25% operating cash margin | Negative CCC possible | Prepaid annual plans fund growth; watch deferred-revenue timing vs spend. |
| E-commerce | 3–8% net cash margin | 25–50 day CCC | Marketplace payouts lag ad spend; hold a 4–8 week outflow buffer. |
Formulas & How to Use This Calculator
Core formula
Runway (months) = Cash Balance ÷ Monthly Net Burn Worked: $240,000 cash divided by $20,000 monthly burn gives 12 months of startup runway.
Runway in years
Years = Runway Months ÷ 12. Example: 12 months ÷ 12 = 1.0 year of runway.
Fundraise-by date
Start raising ~6 months before cash-out. Example: 12 months runway means begin fundraising within 6 months.
How to use — step by step
- Step 1: enter Cash balance — Cash on hand right now.
- Enter Monthly net burn — Average monthly cash outflow net of revenue.
- Read the headline runway, check the warning box for negative or impossible inputs, then study the proportional bars.
- Compare against the benchmark table and pick the Starter, Growth or Scale plan that matches your stage.
Worked Examples
Real numbers, fully worked — copy the pattern for your own products and services.
Example 1 — Seed startup
Inputs
Cash $240,000.00, burn $20,000.00/mo
Math
Runway = $240,000.00 ÷ $20,000.00 = 12.0 months
Result
12.0 months (1.00 yrs)
Example 2 — Funded scale-up
Inputs
Cash $500,000.00, burn $25,000.00/mo
Math
Runway = $500,000.00 ÷ $25,000.00 = 20.0 months
Result
20.0 months (1.67 yrs)
Example 3 — Bootstrapped team
Inputs
Cash $90,000.00, burn $30,000.00/mo
Math
Runway = $90,000.00 ÷ $30,000.00 = 3.0 months
Result
3.0 months (0.25 yrs)
Advanced Education: Master This Topic
Beyond the basics — the concepts professionals use to price for profit across channels, seasons, and competitors. Each section below targets a real long-tail search.
What runway actually measures
Every cash decision rests on knowing runway cold. The relationship Runway (months) = Cash Balance ÷ Monthly Net Burn compresses an entire ledger layer into one number you can track monthly. Take the worked case: $240,000 cash divided by $20,000 monthly burn gives 12 months of startup runway. That single reading tells you whether the period built or drained cash before the next decision. Owners who review it monthly catch drift early — a two-week slip in collections on $100,000 of credit sales locks up roughly $5,500 that profit figures never reveal. Treat this metric as the headline of your cash review, and make every manager who touches price, terms, or stock able to define it in one sentence.
The math, step by step
Start with clean same-period inputs from sales records and the ledger, never mixing months with quarters. Then apply Runway (months) = Cash Balance ÷ Monthly Net Burn exactly as written, keeping units consistent — dollars with dollars, days with days. Work the example: $240,000 cash divided by $20,000 monthly burn gives 12 months of startup runway. Notice how each operation has a business meaning: addition gathers resources, subtraction isolates the residual, division scales it to a rate. Common slips include dividing by zero, annualizing one input but not the other, and rounding mid-calculation. Do the division last, keep two decimals on money and one on days, and rerun the page calculator to confirm your hand math matches to the cent.
Startup Runway Calculator versus its closest cousins
Confusing sibling metrics is the costliest beginner error in cash analysis. Profit counts accruals while cash counts movement, so a profitable month can still drain the bank when receivables swell. In our case: $240,000 cash divided by $20,000 monthly burn gives 12 months of startup runway — compare that against cash burn rate, where Burn rate is monthly spend speed; runway converts it into months of survival. Quoting the wrong cousin misprices risk: funding looks safe on profit while cash runs dry, or growth looks funded while suppliers quietly carry it. Keep both on one dashboard, label each clearly, and let this page own the runway definition your team quotes.
Benchmarks and what good looks like
A number without a benchmark is just trivia. The rule here: 12–18 months after a raise; act when runway falls below 6 months. Put the worked case against it: $240,000 cash divided by $20,000 monthly burn gives 12 months of startup runway. If you sit inside the band, protect the routine that got you there — terms enforcement, reorder discipline, weekly reviews. If you sit outside, attack the largest input first rather than spreading effort thin; one big lever (collections, stock depth, payment timing) usually moves runway more than five small cuts. Recheck the industry benchmark table above for your vertical, then set a quarterly target 5–10% tighter than today.
How runway drives real decisions
This metric answers when to fundraise, cut, or push for breakeven, which makes it a gate for hiring, stock buys, and borrowing. Work from the example: $240,000 cash divided by $20,000 monthly burn gives 12 months of startup runway shows exactly how much headroom the period carries. A healthy reading green-lights growth spending and debt; a weak one triggers the playbook — accelerate receipts, defer discretionary spend, renegotiate terms, draw a pre-arranged line. Tie each input to an owner (sales owns receivables, ops owns inventory, finance owns payables) and review the trio weekly when cash is tight, monthly when comfortable.
Limits and blind spots
No single metric tells the whole cash story, and runway is no exception. It is a snapshot: $240,000 cash divided by $20,000 monthly burn gives 12 months of startup runway describes one period, not the trend, and timing spikes (a big payroll week, a lump receipt) can flatter or punish it. It also ignores non-cash buffers like undrawn credit and overstates safety when old receivables will never collect. Pair it with the coverage ratio, the aging buckets, and a 13-week forecast; investigate any 10% swing within days, and never let one good reading justify doubling commitments.
Industry Playbooks
Cost structures differ by vertical — here is how to adapt one base price per business type without losing margin.
Retail playbook
Retail lives on turns times terms. Apply Runway (months) = Cash Balance ÷ Monthly Net Burn per store monthly; on the worked case ($240,000 cash divided by $20,000 monthly burn gives 12 months of startup runway) the collection and stock terms dominate the answer. Protect fast sellers with reorder discipline, mark down dead SKUs quickly, and align supplier payments to selling weekends so cash peaks cover outflows.
Wholesale / Distribution playbook
Wholesale runs on thin margins and long terms, so runway accuracy matters more than precision pricing. Use Runway (months) = Cash Balance ÷ Monthly Net Burn per contract or route; the worked case ($240,000 cash divided by $20,000 monthly burn gives 12 months of startup runway) shows how receivables and payables offset. Tier terms by volume and payment speed, enforce credit limits, and never sign annual pricing without rerunning this math on current cost.
Services playbook
Services substitute payroll timing for inventory, so load fully-burdened labor cost plus milestone billing into Runway (months) = Cash Balance ÷ Monthly Net Burn. With the worked case ($240,000 cash divided by $20,000 monthly burn gives 12 months of startup runway) as baseline, bill weekly, require deposits on large engagements, and chase 30-day buckets with calls — one leaking retainer can erase five healthy ones.
Manufacturing playbook
Manufacturing must absorb materials, WIP, and finished goods. Feed Runway (months) = Cash Balance ÷ Monthly Net Burn with standard cost plus stage payments; the worked case ($240,000 cash divided by $20,000 monthly burn gives 12 months of startup runway) anchors the review. Track variance monthly, align raw-material buys to firm orders, and quote custom work with its own cash math rather than a blended rate.
Glossary: Key Terms Explained
- Revenue
- Total sales dollars before any costs are subtracted. Growth in revenue drives every working-capital need on this page.
- Working Capital
- Current assets minus current liabilities — the liquid cushion funding day-to-day operations.
- Cash Flow
- Actual dollars moving in and out. Positive flow builds the balance; negative flow drains it regardless of profit.
- Operating Cash Flow
- Cash generated by core operations, before investment and financing — the engine every ratio here starts from.
- Runway
- Months of operation remaining at current burn.
- Zero-cash date
- Today plus runway; the deadline for funding or profit.
- Net burn
- Monthly cash consumption net of incoming revenue.
- Extension levers
- Cutting burn, raising revenue, or raising capital.
Common Mistakes & Pro Tips
Mistakes that kill margin
- Mixing periods — revenue from March with balances from April silently breaks runway.
- Omitting cash taxes, card fees (~2.9% + $0.30), and bank charges from the outflow side.
- Annualizing one input but not the other, shifting the answer by a factor of 12.
- Averaging one blended rate across products so a cash-draining line hides inside a healthy total.
- Rounding mid-calculation instead of at the final step.
- Pricing and promising off stale inputs after suppliers or terms changed.
Pro tips to grow profit
- Recompute right after every terms, supplier, or fee change — small input drift moves runway fast.
- Track the headline result monthly on one chart; investigate any 10% move within a week.
- Pair every rate with its dollar pool — days without dollars cannot set policy.
- Benchmark against your industry row before celebrating or panicking.
- Tie each input to one owner and review weekly when cash is tight.
- Build the reserve toward 3–6 months of outflows before expanding commitments.
Who Should Use This Calculator?
- ▸ Owner-operators reviewing monthly cash against runway targets.
- ▸ Finance leads timing hiring, stock buys, and debt draws.
- ▸ E-commerce sellers reconciling payout lags against ad and supplier spend.
- ▸ Accountants preparing client-ready commentary with benchmarks attached.
- ▸ Founders sizing funding needs from runway and runway math.
- ▸ Lenders and investors stress-testing liquidity before committing.
- ▸ Seasonal businesses planning peaks and troughs around runway.
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Frequently Asked Questions (15)
Long-tail answers: each question targets a real Google search about startup runway calculator — click to expand.
How do I calculate startup runway?
What is the startup runway formula?
What is a good startup runway?
How is startup runway different from cash burn rate?
Can I compute startup runway in Excel?
Why is my startup runway negative?
How does startup runway affect my cash decisions?
Startup Runway Calculator vs a generic profit calculator — which one?
How often should I recompute startup runway?
Do taxes and fees change startup runway?
Do early-pay discounts affect startup runway?
What is the fastest lever to improve startup runway?
Does startup runway work the same for services?
What mistakes break startup runway math?
What runway target should I set for next quarter?
Resources & Authoritative References
Further reading
- Investopedia — Cash Flow & Liquidity Ratios — Plain-English definitions and worked examples for runway and every cash ratio on this page.
- U.S. SBA — Manage Business Finances — Free federal guidance on cash planning, bookkeeping, and reading your statements.
- Corporate Finance Institute — Free Finance Resources — Deep tutorials on working capital, runway, and cash conversion analysis.
- AccountingTools — Cash & Working Capital Articles — Practitioner-level formulas for collections, payables, and liquidity.
Authoritative sources
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Last updated: October 2026 · Free forever · No sign-up · Part of Business Calculators at Atlascalcs.com · Embed any result with ?embed=1