Aevum Plaza
Entry square
The future spawn point where composed ShowMath journeys, advisor flows, and cross-product handoffs become playable routes.
Aevum: aevum-gate
The calculator library now has a world manifest: every tool can resolve into a district, building type, unlock signal, memory hook, and future Aevum route.
Districts
7
Places
272
Calculators
243
Profile-aware
55
Districts group calculator categories into future spaces with storage, social, and Aevum routing intent. This is the layer a playable world can ingest before the 3D environment is ready.
Aevum Plaza
Entry square
The future spawn point where composed ShowMath journeys, advisor flows, and cross-product handoffs become playable routes.
Aevum: aevum-gate
Builder Yard
Trades and job-cost math
A practical worksite for contractor bids, material takeoffs, markup, labor burden, and pricing decisions.
Aevum: forge
Body Lab
Health and training math
A physiology wing for BMR, TDEE, macros, hydration, strength, and training plans that can follow a player profile.
Aevum: constellation-ridge
Ledger Archive
Tax and legal proof halls
A records district for tax, filing, legal, and compliance calculators where every result needs a source trail.
Aevum: world-tree-archive
Market Lab
Growth and operator economics
A venture and campaign lab for SaaS, marketing, pricing, referrals, valuation, runway, and channel economics.
Aevum: market-square
Money Harbor
Household wealth routes
A navigation district for personal finance, retirement, home buying, investing, and long-horizon wealth decisions.
Aevum: market-square
Systems Foundry
Engineering cost and capacity
An infrastructure shop for API pricing, cloud spend, latency economics, queues, capacity, and technical debt tradeoffs.
Aevum: forge
Highest-signal places first: profile-aware tools, composed calculators, and primitives that can feed future quest chains.
Household money OS (super-super)
super chain towerComposes Cash-flow Command Center + Cash Reserve Planner + Wealth Trajectory into one household priority queue.
super-category:comprehensive / profile:household_income / profile:savings_balance
Complete fitness plan
super calc hallBMR → TDEE → calorie deficit/surplus → macro split → weekly training volume → 12-week progression. Profile-driven.
super-category:fitness / profile:weight_lbs / profile:height_in
Wealth trajectory
super calc hallNet worth → savings rate → portfolio growth → retirement projection → Coast FIRE age.
super-category:wealth / profile:age / profile:savings_balance
Contractor profit engine
super calc hallShop rate → labor burden → bid target → margin after overhead → monthly runway. The whole pricing chain in one pass.
super-category:contractor / profile:shop_rate / profile:labor_burden_pct
Body fat percentage — Navy method
primitive nodeBody fat % from neck, waist, and hip measurements using the U.S. Navy circumference formula.
category:health / profile:weight_lbs / profile:height_in
Freelancer tax master
super calc hallSelf-employment tax → quarterly estimate → safe harbor → home office → retirement-contribution impact.
super-category:tax / profile:income_1099 / profile:business_expenses_estimate
BMR calculator (Mifflin-St Jeor)
primitive nodeBasal metabolic rate with Mifflin-St Jeor and Harris-Benedict formulas — the calories your body burns at complete rest.
category:health / profile:weight_lbs / profile:height_in
Divorce financial impact
super calc hallAlimony × child support × asset split × QDRO retirement division × post-divorce tax filing change.
super-category:wealth / profile:household_income / profile:dependents
Roth conversion ladder calculator
primitive nodeModel a multi-year Roth conversion strategy — annual tax cost, bracket stack, 5-year rule timeline, and long-term savings.
category:finance / profile:age / profile:ira_balance
Cash-flow command center
super calc hallBudget, emergency runway, debt payoff, savings rate, and next-dollar priority in one cash-flow chain.
super-category:wealth / profile:household_income / profile:savings_balance
Net worth calculator
primitive nodeTotal net worth from assets and liabilities — liquid vs illiquid assets, debt-to-asset ratio, and year-over-year change.
category:finance / profile:cash / profile:retirement_accounts
Backdoor + mega-backdoor Roth
super calc hallDirect Roth eligibility × backdoor pro-rata check × mega-backdoor 401(k) capacity × total annual Roth potential × 30-yr tax-free growth.
super-category:tax / profile:household_income / profile:filing_status
Break-even analysis calculator
primitive nodeBreak-even units and revenue from fixed costs, variable cost per unit, and selling price — with contribution margin ratio.
category:business / profile:fixed_costs / profile:variable_cost_per_unit
EBITDA calculator
primitive nodeEBITDA, EBITDA margin, and EV/EBITDA valuation multiple from P&L line items — the number acquirers and lenders use.
category:business / profile:revenue / profile:cogs
Estate planning master
super calc hallGross estate → federal exemption → state estate tax → step-up basis savings → life insurance gap → probate vs trust cost.
super-category:wealth / profile:household_income / profile:state
HSA contribution optimizer
primitive nodeTriple tax advantage math — annual tax savings, investment growth at retirement, and break-even vs FSA.
category:finance / profile:federal_tax_rate / profile:state_tax_rate
Macro calculator
primitive nodeDaily protein, fat, and carbohydrate targets from TDEE and goal (cut, maintain, bulk) — with calorie split and grams.
category:health / profile:tdee / profile:weight_lbs
Workers comp premium estimator
primitive nodeEstimate annual workers comp cost from payroll, class codes, experience modifier, and state base rate.
category:contractor / profile:annual_payroll / profile:trade_class_code
Every place advertises memory hooks so future storage can be shown as layers instead of hidden tables: profile facts, runs, proof cards, vault memories, and social threads.
Profile layer
Reusable player/user facts that prefill calculators and light up relevant buildings.
Run layer
Inputs, outputs, formula steps, and scenario branches from each calculator session.
Proof layer
Shareable cited result cards that can be handed to advisors, accountants, clients, or teammates.
Vault layer
Long-lived decisions, assumptions, saved plans, and future recall objects.
Social layer
Comments, collaborator notes, group challenges, and public learning threads around a result.
Legal
20 tools - ledger-archive
Real estate
25 tools - money-harbor
Retirement & investing
21 tools - money-harbor
Tax
14 tools - ledger-archive
Business & SaaS
39 tools - market-lab
Marketing
21 tools - market-lab
Dev & engineering
22 tools - systems-foundry
Contractor & trades
28 tools - builder-yard
Health & fitness
23 tools - body-lab
Personal finance
30 tools - money-harbor