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ShowMath, mapped for play.

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

District contracts

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

4

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

29

A practical worksite for contractor bids, material takeoffs, markup, labor burden, and pricing decisions.

Aevum: forge

Body Lab

Health and training math

24

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

43

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

60

A venture and campaign lab for SaaS, marketing, pricing, referrals, valuation, runway, and channel economics.

Aevum: market-square

Money Harbor

Household wealth routes

90

A navigation district for personal finance, retirement, home buying, investing, and long-horizon wealth decisions.

Aevum: market-square

Systems Foundry

Engineering cost and capacity

22

An infrastructure shop for API pricing, cloud spend, latency economics, queues, capacity, and technical debt tradeoffs.

Aevum: forge

Featured buildings

Highest-signal places first: profile-aware tools, composed calculators, and primitives that can feed future quest chains.

All calculators

Household money OS (super-super)

super chain tower

Composes 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 hall

BMR → 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 hall

Net worth → savings rate → portfolio growth → retirement projection → Coast FIRE age.

super-category:wealth / profile:age / profile:savings_balance

Contractor profit engine

super calc hall

Shop 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 node

Body 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 hall

Self-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 node

Basal 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 hall

Alimony × 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 node

Model 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 hall

Budget, 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 node

Total 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 hall

Direct 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 node

Break-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 node

EBITDA, 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 hall

Gross 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 node

Triple 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 node

Daily 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 node

Estimate annual workers comp cost from payroll, class codes, experience modifier, and state base rate.

category:contractor / profile:annual_payroll / profile:trade_class_code

Storage visualization spine

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.

Category coverage

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