Calculators and simulators
Every interactive tool from the course, on its own page. Use them to model your own round, and bookmark the ones you need.
- 83(b) election deadlineEnter the day that you got your shares. See day 30, the date to file by, and the days that are left.Open
- Accelerator break-even capFind the cap that you must get with an accelerator to sell the same part of your company as without it.Open
- Accelerator deal comparisonSet the cap of your next SAFEs. Compare the stake, the implied valuation, and the blended valuation of eight accelerator deals.Open
- Accredited investor checkEnter a person's income, net worth, and licenses. See which SEC tests for an accredited investor pass, and why.Open
- Acquisition proceeds calculatorTurn a headline sale price into cash: subtract the earnout, the escrow, debt, and fees, and see when the money arrives.Open
- Anti-dilution calculatorEnter a down round. Compare the new conversion price and the extra shares under broad-based weighted average, narrow-based weighted average, and full ratchet.Open
- Burn multiple calculatorEnter net burn and the ARR at the start and end of a quarter. See the burn multiple and its level on the David Sacks scale.Open
- Cap or discount calculatorEnter a SAFE with a cap and a discount. Move the round price and see which price the SAFE pays.Open
- Cap table simulatorRun a company from founding to the Series B. Set each round, and see who owns the company after each round, the founders' share, and their paper value.Open
- Convertible note calculatorEnter a note's principal, interest, cap, and discount. See the balance at the Series A, the conversion price, and the shares the note gets.Open
- Default alive calculatorEnter cash, revenue, growth, and expenses. See if revenue catches up with expenses before the cash runs out.Open
- Delaware franchise tax calculatorCompare the authorized shares method with the assumed par value capital method, and see the lower tax that your company pays.Open
- Exit waterfall calculatorEnter a cap table with up to six preferred series and a sale price. See what each holder gets, which series convert, and where each one flips.Open
- Form D deadline calculatorEnter the date of the first sale. See when Form D is due, with the weekend and holiday rule, and the state notice fees.Open
- Fund returner calculatorEnter a fund size, the fund's stake, and the later rounds. See the exit that returns the whole fund, and what your exit means to the fund.Open
- Growth rate converterConvert a growth rate between a week, a month, and a year, and see how it compounds.Open
- Investor funnel calculatorSet the yeses that you need and the rate at each stage. See how many investors to contact and how long the first meetings take.Open
- Liquidation preference calculatorSet the preference multiple, the participation, and a sale price. See what the investor and the common holders get, and where the investor converts.Open
- LTV, CAC, and payback calculatorEnter price, gross margin, churn, and CAC. See LTV, LTV:CAC, and the months to earn back the CAC.Open
- Option exercise tax calculator (2026)See the 2026 federal tax on an ISO or NSO exercise, the AMT, and how many ISOs you can exercise this year before the AMT starts.Open
- Option pool plannerPlan the hires until your next round. See the pool that the plan needs, and compare it with the pool in a term sheet.Open
- Option pool shuffle calculatorEnter a term sheet's pre-money valuation and pool size. See the real price per share and the effective pre-money valuation.Open
- Pre-money and post-money calculatorEnter a raise and a valuation. See the pre-money, the post-money, and what you sell.Open
- Price per share calculatorEnter a pre-money valuation, the new money, and the share count. See the price per share, the new shares, and who owns the company after the round.Open
- Priced round cap table builderEnter your cap table, your SAFEs and notes, and a term sheet. See the price per share, the pool top-up, how each SAFE and note converts, and the cap table at each step of the round.Open
- Pro rata calculatorEnter an investor's ownership and the next round. See its pro rata amount and the money that keeps its percentage the same.Open
- QSBS tax calculatorEstimate the federal tax on a sale of qualified small business stock under the rules before and after July 4, 2025.Open
- Raise plannerEnter your burn and your cash. See the amount to raise, the month to start, and the month to start the next raise.Open
- Reg CF investment limitEnter an income and a net worth. See how much a non-accredited investor can put into Reg CF offerings in 12 months.Open
- Revenue-based financing costEnter an advance, a cap, and a revenue share. See the months to repay and the effective annual cost.Open
- Run rate calculatorTurn one day, week, month, or quarter of revenue into a run rate. Then see what the company collects in the next 12 months.Open
- SAFE cap from the money and the stakeEnter the money you want to raise and the part of the company you agree to sell. See the post-money cap and where it sits among recent Carta caps.Open
- SAFE conversion calculatorConvert up to four post-money SAFEs into a Series A. See each step, every price, and the cap table after the round.Open
- SAFE stack calculatorAdd your post-money SAFEs one at a time. See the running total that you sold and what the founders keep.Open
- SAFE, note, or priced roundUse the same raise and valuation number for a SAFE, a convertible note, and a priced round. Compare what each one sells, costs, and takes.Open
- Seed term sheet, clause by clauseRead a clean seed term sheet in plain words, with what is market in 2025-2026. Then find the red flags in a second version of the same term sheet.Open
- Startup headline decoderPick a funding headline and change its numbers. See what run rate, ARR, post-money, led by, valued at, and oversubscribed mean, with the math.Open
- Startup option offer evaluatorEnter the options, the total shares, the strike price, and the preferred price. See your part of the company, the cost to exercise, and what the grant pays at five sale prices.Open
- Startup simulator: from founding to saleSplit the founder shares, raise SAFEs, a seed, and a Series A, then sell the company. See what each person gets.Open
- Term sheet comparisonCompare two offers by what the founders get at ten sale prices, and find the sale price where the better offer changes.Open
- Venture debt or SAFECompare the cost of a SAFE and of a venture loan for the same money, at every exit value.Open
- YC deal calculatorSet your SAFEs after Demo Day and your next priced round. See what YC's two SAFEs and the founders own when the SAFEs convert and after the round.Open