Devon Coombs Academy
Every free resource, one page
The full catalog: 4 interactive courses, 78 calculators, 213 precomputed reference pages, 7 Excel templates, 1,090 definitions, and 20 comparison guides. Everything is free with no account and no email gate, built and maintained by a CPA and Teaching Professor of Finance.
Courses
10 laws, 500+ questions
Corporate Finance: The 10 Laws of Finance
The core principles of finance taught as ten laws, with interactive lessons, practice questions, and fresh-numbers regeneration.
12 chapters + final exam
Real Estate Finance
Valuation, mortgages, underwriting, and investment analysis, with calculators and practice exams in every chapter.
9 weeks + appendices
Entrepreneurial Finance
Startup financing, venture capital, term sheets, and exit math, from first fundraise through governance.
15 modules + labs
Applied AI for Finance and Accounting
Hands-on AI workflows for close, FP&A, audit, and diligence, with downloadable lab kits and a maturity framework.
Tools and references
78 tools
Calculators
Interactive calculators for personal finance, real estate underwriting, valuation, startup math, and fund economics, each on its own page.
7 downloads
Excel templates
Budget, cash flow, net worth, debt payoff, savings goals, loan amortization, and investment growth, all real formulas and no email gate.
1,090 terms
Definitions
Plain-language definitions of finance, real estate, venture, and AI terms, each linked back to the course that teaches it.
20 guides
Comparison guides
X vs Y decision guides for commonly confused measures, with the decision frame first and the definitions after.
Custom quizzes
Practice and exams
Build custom quizzes from the course question banks, run timed exam simulations, and track mastery by topic.
78 embeds
Embeddable widgets
Every calculator ships as a copy-paste iframe widget for your own site or classroom page, with attribution built in.
Reference tables
213 pages47 pages
Mortgage payment by loan amount
Monthly payments from $100k to $5M at rates from 5% to 8%.
26 pages
House affordability by income
The home price a salary generally supports under the 28% guideline.
91 pages
Hourly wage to yearly salary
What $12 to $200 an hour comes to per year, month, and paycheck.
30 pages
Salary to hourly wage
What $30,000 to $1,000,000 a year works out to per hour.
19 pages
Investment growth by amount
What $1,000 to $5,000,000 grows to at 4% to 10% returns.
Every number on the calculator and reference pages comes from a shared math library that is tested against hand-computed answers before anything ships, and each tool links back to the free course chapter that teaches the concept.
By Devon Coombs, CPA, MBA, Teaching Professor of Finance at Santa Clara University.