A clean calculator hub with the calm structure of a premium planner.
The hub now combines all 12 working calculators with evergreen guides, explicit SEO controls, and monetization-ready placements that stay tasteful and layout-stable.
Batch 1 tools
12
Core categories
03
Live calculators
12
Launch lane
What this phase already solves
The repo now ships live calculators, local SEO content, explicit metadata plumbing, and tasteful placeholder slots without dragging in a heavy CMS.
Core categories
Three calculator lanes, one shared shell
Each category route is already wired for metadata, listings, and future SEO expansion.
Popular tools
Start with the calculators people reach for most
A curated lane of high-intent tools keeps the homepage focused while the full directory stays available below.
Mortgage Calculator
Preview monthly mortgage costs, repayment structure, and planning context.
Investment Calculator
Estimate future portfolio value using deposits, growth rate, and time horizon inputs.
Percentage Calculator
Quickly solve common percentage relationships and part-to-whole questions.
BMI Calculator
Estimate body mass index from height and weight inputs.
Age Calculator
Find exact age from a birth date using a clean, planner-style interface.
Discount Calculator
Break down sale price, savings, and markdown math for everyday purchases.
Read next
Guides that support calculator intent
These starter articles give the tool pages supporting context, richer internal links, and indexable SEO coverage.
Mortgage vs Loan Payment Basics for First-Pass Planning
See how mortgage and loan payments are calculated, which inputs change the payment most, and why monthly cost needs context from total interest.
Calorie Maintenance Targets Explained for Everyday Planning
Learn how maintenance calories work, why Mifflin-St Jeor is a useful baseline, and how to turn the result into a small cut or bulk target.
Understanding BMI and Healthy Ranges Without Overstating the Result
Understand what BMI measures, how to read BMI ranges, and when a BMI calculator is useful for practical health planning.
All tools
The full calculator directory
Every batch 1 calculator now lives on a working route, all within the same shared shell and content system.
BMI Calculator
Estimate body mass index from height and weight inputs.
Calorie Calculator
Plan a baseline calorie target for maintenance, loss, or gain scenarios.
Mortgage Calculator
Preview monthly mortgage costs, repayment structure, and planning context.
Loan Calculator
Model installment loans with rate, term, and payment details.
Compound Interest Calculator
Project balance growth with contributions, compounding, and time horizon inputs.
Investment Calculator
Estimate future portfolio value using deposits, growth rate, and time horizon inputs.
Percentage Calculator
Quickly solve common percentage relationships and part-to-whole questions.
Percent Change Calculator
Measure increase or decrease between two values with change-focused phrasing.
Grade Calculator
Estimate course outcomes from weighted assignments and score scenarios.
Age Calculator
Find exact age from a birth date using a clean, planner-style interface.
Date Difference Calculator
Measure time between two dates for schedules, planning, and deadline tracking.
Discount Calculator
Break down sale price, savings, and markdown math for everyday purchases.
SEO foundation
Canonical URLs, sitemap generation, robots rules, and JSON-LD now live beside the routes instead of hiding in a plugin layer.
Discovery links
Popular tools, related guides, and category cross-links keep the internal linking natural without cluttering the calculator experience.
Monetization-ready layout
Tasteful placeholder slots reserve space for future sponsors or affiliates without sitting next to the main calculator actions.
Ready for the next implementation slice
The hub now has a working calculator directory, a starter guide layer, and explicit SEO plumbing without revisiting the project foundation again.