Do these calculator suites require signup?

No. All tools across DateKit, BudgetKit, HealthKit, SleepKit, FocusKit, OpsKit, StudyKit, CareerKit, HousingKit, TaxKit, AutoKit, and GitKit are free and available without signup.

Can I use these suites on mobile?

Yes. Every suite in the directory is mobile friendly and can be used directly in a browser.

Where should I start?

Start with the suite tied to your immediate planning need, then use the directory links to move between related suites.

Kits Directory

Switch quickly between all planning and workflow suites. 60 tools are currently available across focused kits.

📅

DateKit

Date difference, date math, business-day, and Unix-time conversion calculators.

3 calculators

💸

BudgetKit

Budget planning, debt payoff, savings, and emergency fund calculators.

3 calculators

🧮

HealthKit

BMI, calories, macro, and hydration planning calculators in one suite.

5 calculators

😴

SleepKit

Sleep cycles, bedtime, wake time, and sleep debt recovery planning tools.

4 calculators

🎯

FocusKit

Focus session, time block, and meeting load calculators for deep-work planning.

4 calculators

🛠

OpsKit

SLA, error-budget, incident-cost, and on-call load calculators for reliability planning.

5 calculators

🎓

StudyKit

GPA, final-grade, and study-time calculators for exam preparation.

4 calculators

💼

CareerKit

Salary, raise, overtime, and offer comparison calculators for career planning.

8 calculators

🏠

HousingKit

Mortgage, affordability, refinance, and rent-vs-buy calculators for home planning.

11 calculators

🧾

TaxKit

Quarterly estimated tax and paycheck take-home calculators for tax planning.

7 calculators

🚘

AutoKit

Auto loan, commute cost, and total ownership calculators for car planning.

3 calculators

🗃

GitKit

Branch naming, commit message, and rebase planning tools for Git workflows.

3 calculators

How to Use This Directory

Use DateKit for scheduling math, BudgetKit for money decisions, HealthKit and SleepKit for wellness planning, FocusKit for deep-work execution planning, OpsKit for reliability operations planning, StudyKit for academic planning, CareerKit for compensation decisions, HousingKit for home-cost planning, TaxKit for quarterly and paycheck tax planning, AutoKit for loan and ownership-cost planning, and GitKit for branch naming, commit hygiene, and rebase preparation. Each suite cross-links to related paths so you can move between tasks without restarting your workflow.