Explore EN

Explore tools EN

Useful tools. Clear answers.

Find the right tool, without the clutter.

Calculate, plan and learn with focused tools organised around what you need to do.

Warm desk with books labelled Learn, Plan, Decide and Grow, beside a plant, mug, notebook and laptop.

Browse

Explore by category

Move directly to the subject that matches your task.

Developer ToolsFormat and validate JSON, test JavaScript regular expressions and generate or inspect common identifiers… EducationPlan study time, calculate grades and organise academic work with tools for coursework, exams… MathWork with percentages, averages, ratios and fractions using focused calculators that show the result… Time & DateCalculate ages and calendar differences, convert Unix timestamps and prepare printable calendars. These tools…

Start here

Featured tools

A focused selection from the tools already available in VETIKA.

Age CalculatorCalculate calendar age from a date of birth to a chosen date using years, months and days.

Assignment Workload PlannerDistribute coursework by deadline and available hours, with clear overload warnings.

Average CalculatorCalculate the arithmetic mean of a set of finite numbers and see the sum and count used.

College Class Schedule BuilderBuild a weekly class timetable, detect conflicts and find usable free gaps.

Custom Printable Calendar GeneratorCreate a custom monthly or yearly calendar with your preferred week start, paper size, events and print layout.

Date Difference CalculatorCalculate the calendar difference and total elapsed days between two dates without reordering them.

Decimal to Fraction CalculatorConvert a finite decimal string exactly to a simplified fraction without binary floating-point rounding.

Exam Countdown & Study PlannerCalculate your real study capacity and build a phased plan for one exam.

Learn

Guides and resources

Clear explanations and practical examples connected to the tools you use.

View all guides

Time & Date

A4 vs US Letter for Printable Calendars

Compare A4 and US Letter dimensions, portrait and landscape layouts, printer margins, scaling and writing space for printable calendars.

Read guide

Time & Date

How to Calculate Age Exactly

Learn calendar-age calculation using completed birthdays, years, months and days, including leap years and February 29 edge cases.

Read guide

Time & Date

How to Create a Printable Calendar

Learn how to choose a calendar period, week start, paper size, orientation, events and notes, then print or save a useful calendar as PDF.

Read guide

Education

How Weighted Grades Work

Learn the weighted-grade formula, percentage and decimal weights, normalization, incomplete weight totals and common calculation mistakes.

Read guide

How VETIKA helps

From a question to a useful answer.

A simple path for calculating, understanding and moving forward.

Choose a focused tool

Start with the calculator or planner that matches your task.

Work with clear inputs

Enter the information you know and follow the visible steps.

Understand the result

Use the explanation and related guides when you need more context.