{"slug":"runway","name":"Runway & Burn","category":"mba","tags":["funding","finance"],"tagline":"How many months of cash remain, and when to start raising.","endpoint":"https://xearno.tools/api/v1/tools/runway","page":"https://xearno.tools/t/runway","description":"Computes runway from cash and net burn, optionally with burn trending up or down monthly, and reads the result against fundraising realities: raises take 3–6 months, and 18–24 months post-raise is the norm.","inputSchema":{"type":"object","properties":{"cash":{"description":"Cash in bank","type":"number","minimum":0,"default":500000},"burn":{"description":"Net monthly burn Expenses minus revenue. Use the average of the last 3 months.","type":"number","minimum":0.01,"default":40000},"burnChange":{"description":"Burn change / month (%) Positive if burn is growing (hiring), negative if revenue is catching up.","type":"number","minimum":-50,"maximum":100,"default":0}},"required":[],"additionalProperties":false},"methodology":["Constant burn: runway = cash ÷ net monthly burn. With burn trending, cash is depleted month by month at burn × (1+g)^t, with a linear correction for the final partial month.","Net burn = total expenses − revenue. Use a trailing 3-month average; a single month is noisy (annual invoices, one-off costs).","The 3–6-month fundraise duration and 18–24-month post-raise norms are standard venture operating guidance. \"Default alive\" (revenue growth crossing expenses before zero cash) is the stricter and better test."],"usage":"POST https://xearno.tools/api/v1/tools/runway with a JSON body matching inputSchema."}