Skip to content
Good Combinator

Practical tools

Use the calculators before you book the call.

A visible home for the planning tools founders and nonprofit operators actually need.

These are not novelty widgets. They answer the questions people usually need to resolve before they are ready to apply, hire, fundraise, or start an AI implementation. Run the numbers, get a sharper point of view, then decide whether a conversation makes sense.

No login required Founder math, not fluff Mission and margin both matter
4 Live calculators for readiness, impact, dilution, and cash runway.
2 min Typical completion time for the faster self-assessment tools.
0 Forms or email gates before someone can get useful output.

Calculator library

Each tool is built around a concrete decision.

Pick the planning problem you are trying to resolve. Each page is designed to produce a next step, not just a score.

AI strategy 2 minute audit

AI Readiness Scorecard

Score operational readiness, internal alignment, workflow maturity, and implementation risk before you buy into an AI roadmap.

Nonprofits Mission capacity

Nonprofit Impact Calculator

Translate AI adoption into staff time recovered, donor touchpoints increased, and program capacity unlocked.

Fundraising Dilution modeling

Equity Calculator

See what accelerator equity actually means for founder ownership by the time you reach a later financing round.

Finance 12 week planning

Runway Planner

Model cash burn, scenario changes, and operational pacing before your next raise starts slipping behind the calendar.

What to do after

The calculator should narrow the decision, not replace it.

  • If your readiness score is weak, fix process and data quality before chasing automation.
  • If your impact multiplier is real, prioritize the workflows closest to mission delivery first.
  • If your dilution model looks worse than expected, tighten your financing plan before you commit.
  • If runway is thin, adjust burn and milestones together instead of hoping timing solves it.

The point of a tool is compression.

A useful calculator reduces ambiguity fast enough that the next conversation starts from evidence instead of guesses.

Good Combinator operating principle

Need a second pass?

Bring the output. We’ll pressure-test the answer.

If one of these tools surfaces a real constraint, the next step is a short working conversation with the numbers already on the table.