Component Calculator
Track 15 standard components plus 5 custom items with replacement cost, useful life, and current age.
How Component Calculator Works
Enter each major property system with its replacement cost, expected useful life, and current age. The calculator determines remaining life and annual reserve requirements for every component.
- 15 standard components: roof, HVAC, water heater, appliances, and more
- 5 custom component slots for property-specific items
- Per-component replacement cost and useful life inputs
- Automatic remaining-life calculation based on current age
Component Analysis Chart with 3-View Toggle
A dedicated Component Analysis chart lets you flip between three independent views of every component, with an Annual / Monthly period toggle for each.
- Lifespan view: % of useful life used per component, color-coded by urgency
- Today's Dollars view: annual reserve requirement at current replacement cost
- Inflation Dollars view: real average annual cost across the full 40-year horizon
- Color legend: green (0–24%), blue (25–49%), amber (50–74%), red (75–100%)
Why This Matters
Most investors guess at maintenance reserves. By tracking every component individually — and flipping between today's dollars and inflation-adjusted dollars — you know exactly how much to set aside each month.
- Eliminate guesswork from your reserve calculations
- Catch components nearing end of life before they fail
- Budget accurately for properties with mixed-age systems
Sample Output
See what this feature calculates for you.
Explore More Features
See everything CapEx & Maintenance Estimator has to offer.
40-Year Timeline
Project every replacement event over 40 years with compounding inflation and per-year cost overrides.
Learn more →Savings Modeling
Model a dedicated savings account with monthly deposits, investment returns, and savings inflation — and see exactly when your reserves fall short.
Learn more →Home Warranty Analyzer
Map your home warranty policy to components and run probability-weighted year-by-year value analysis. Know whether your warranty is paying for itself.
Learn more →Upcoming Replacements
Urgency-sorted cards flag what is overdue, due soon, upcoming, or long-term so you can prioritize repair budgets at a glance.
Learn more →Year-by-Year Overrides
Override any cost, inflation rate, monthly savings, or return rate for any specific year — perfect for planned renovations and known events.
Learn more →Failure Probability Model
Every component is scored with an S-curve failure probability model that drives the warranty analyzer and surfaces hidden risk costs.
Learn more →AI Contract Review Pipeline
Analyze contractor agreements, change orders, and warranties with a 5-step AI pipeline: plain English, risks, obligations, negotiation playbook, and executive brief.
Learn more →Included with All Apps
These features come with every app -- no extra cost.
Property Database
70+ fields, auto-save editing, live calculation sidebar, smart search and filtering.
Learn more →Comprehensive Property Data
Every number an investor needs across 11 organized sections with smart field types.
Learn more →Smart Editing & Live Sidebar
Auto-save with 800ms debounce, per-section status badges, and real-time calculations.
Learn more →Property Classification
Tag properties by investment strategy and property type. Filter and sort your entire portfolio.
Learn more →Real-Time Calculations
27 key metrics across 5 categories computed instantly as you type, with clickable walkthroughs.
Learn more →Portfolio Dashboard
Portfolio highlights, property cards, strategy and type breakdowns, overview charts, and cross-app features.
Learn more →AI Property Import
Copy a prompt, paste your MLS listing into any AI tool, and import 20+ property fields in seconds.
Learn more →Ready to Use Component Calculator?
Get access to this feature and everything else in CapEx & Maintenance Estimator.