Free tools

Put your numbers to work

How long will your cash last? What should a project cost? Is AI saving you time? Try a calculator with your own figures and see which assumptions change the answer.

14 active tools · 7 historical tools · 0 emails required

Results depend on your assumptions. Tools marked historical are no longer actively maintained and remain available below.

Runway & Pricing

Cash, capacity and the assumptions behind a founder's next decision · 3 tools

Revenue Concentration Worksheet

What if my biggest customer disappears?

Measure customer or platform revenue shares and compare cash runway in a loss scenario, with explicit reserves and monthly units.

Startup Runway Calculator

What's my actual runway?

Estimate cash runway from expenses, income, reserves and buffers. Compare scenarios using your own assumptions.

Consulting Pricing Calculator

What should I charge?

Explore project pricing from your revenue goal, client capacity and estimated client value. The suggested range uses illustrative multipliers.

Career & AI

Review tasks, time and AI workflow assumptions · 5 tools

Work Changed

How has your workweek changed?

Compare your estimated weekly hours before and after AI. See the mix of production, checking, additional responsibilities and coordination without assuming time was saved.

AI Workflow Cost & Break-Even

Does this AI workflow save time or cash?

Compare your actual run prices, human verification, rework and setup over a chosen horizon. Keep freed capacity separate from cash savings.

AI Work Exposure Review

Which tasks and constraints shape my AI exposure?

Review task exposure, workplace adoption, market assumptions and adaptation options. This rubric does not estimate job-loss probability.

AI Work Assumptions Review

Which assumptions about my work should I test?

Explore the historical Post-AI framework as reflection prompts, then test specific tasks and constraints in your own work.

Severance Math

What does my severance actually buy me?

Compare cash runway using actual spending, additional insurance costs and household contributions, with an explicit buffer.

Money & Freedom

Honest math on what your money actually buys · 5 tools

Freedom Number Calculator

What's my freedom number?

Explore a financial independence target from spending and investment assumptions, with scenario ranges.

Software Subscription Costs

Which renewals should I keep, replace or stop?

Review software subscription (SaaS) renewals and annual costs, then compare editable long-term price scenarios with the costs of maintaining alternatives.

Subscription Reality Check

Which recurring bills am I actually using?

Inventory monthly and annual bills, identify unused items yourself, and compare editable price-growth and investment scenarios.

Savings Target & Runway

When might I reach my chosen savings target?

Compare cash runway and a savings-target date using your expenses, income assumptions and protected reserve.

Geographic Arbitrage Calculator

What does my salary actually buy me?

Compare modeled city budgets in USD under remote, local-income or custom salary assumptions. Validate the budget and tax treatment for your own situation.

Where You Can Live & Work

Review limits on where you can live, work and earn · 1 tool

Mobility Score

Which residence and income constraints should I investigate?

Review residence, income and jurisdiction dependencies. The score is a subjective checklist, not immigration eligibility or a judgment of ambition.

Archived Tools

7 historical tools, preserved with their original assumptions

Historical Career Assumptions Rubric

Which assumptions shape my automation exposure?

Read an archived five-factor rubric. Its legacy numerical value has no validated interpretation as years until automation.