Startup runway and burn rate calculator
Gross burn, net burn, runway months and days, cash-zero date, revenue coverage, and cost/revenue scenarios.
Founder finance resources
Useful answers before another dashboard.
Calculate startup runway, test a project’s real margin, or adopt a project-aware finance method. Every resource states its formula, assumptions, and limits.
Start with the decision you need to make. Use a calculator for a static estimate. Use the guide to build a repeatable capture and review habit. Use Piveth when those project numbers need to stay current.
Choose by question
What are you trying to decide?
Each path goes to a substantive tool or guide—not a generic category page.
Cash survival
How long can current cash last?
Use cash, expenses, and revenue to estimate net burn, runway, and a cash-zero date.
Open the runway calculator → Project economicsIs this project actually profitable?
Separate direct cost from shared cost, then compare gross and fully loaded margin.
Open the profitability calculator → Operating methodWhich business bet is earning or burning?
Use one ledger, stable project boundaries, assigned transactions, and a weekly review.
Read the multi-project guide → Daily captureHow do I track costs across several projects?
Assign direct expenses, preserve a shared-cost pool, and keep financing separate from operating income.
Read the project expense guide → Free Excel templateCan I use the method in a workbook today?
Download a formula-driven tracker for transactions, shared costs, project results, budgets, and checks.
Get the free workbook →Resource library
Five focused assets, one finance model.
Capital is financing, revenue is operating income, expenses belong to a period and project, and every calculated result remains reviewable.
Calculate runway
Project profitability and margin calculator
Gross profit, fully loaded profit, margin, markup, break-even revenue, shared-cost assignment, and quote scenarios.
Multi-project finance tracking
A five-step method, explicit definitions, a worked entry example, tool comparison, and product boundaries.
Project income and expense tracking
A focused method for direct expenses, shared costs, project revenue, financing boundaries, and weekly review.
Multi-project income and expense tracker
An editable workbook with 200 transaction rows, shared-cost allocations, project summaries, dashboard, and visible model checks.
Direct definitions
A small founder-finance glossary.
These definitions match the visible formulas in Piveth’s current public tools and product finance-truth model.
- Capital
- Financing inflow from a founder, lender, or investor. It can increase cash but is not operating revenue.
- Operating revenue
- Customer cash inflow assigned to the selected period and project.
- Gross burn
- Total operating cash expenses for the selected period.
gross burn = expenses - Net burn
- Cash consumed after operating revenue.
max(expenses − revenue, 0) - Static runway
- How long current cash lasts if the entered monthly pattern remains unchanged.
cash ÷ net burn - Gross project profit
- Project revenue after direct project costs.
revenue − direct costs - Fully loaded project profit
- Project revenue after direct costs and the entered share of common costs.
- Margin vs markup
- Margin divides profit by revenue. Markup divides the same profit by cost; the percentages are not interchangeable.
Trust and methodology
What these resources can—and cannot—tell you.
Designed for decisions
The calculators run in your browser and do not send the financial amounts you enter. They expose formulas, worked examples, and scenario assumptions so the result can be checked.
- Consistent, visible definitions
- No signup required for public calculators
- Privacy-safe coarse usage measurement
- Contextual links to source material
Not a financial statement
Static estimates do not know collection timing, taxes, debt, work in progress, depreciation, future financing, or changing business conditions unless represented in your inputs.
- Not bookkeeping or bank reconciliation
- Not tax, accounting, legal, or investment advice
- No guaranteed outcome or search visibility
- Piveth does not yet automate shared-cost splits
Make the estimate current
Give the next financial event a project.
Start with one real project and three real entries. Review the structured result before using it to make a decision.