Skip to content
Smart Web Apps Math Calculators

Math Calculators

A modular set of simple calculators for common student needs: arithmetic, percentages, and physics formulas (speed, distance, time).

Pick a calculator, enter values, then click Calculate.
Pick a calculator
Tip: you can bookmark a calculator using the URL hash (for example, #percentage).

Results
Answer
Formula

Tool description

These calculators are designed for quick, transparent math checks. Each calculator shows the formula used and a copy-ready result line. Physics formulas are simplified and assume consistent units.

How to use

  1. Select a calculator from the list.
  2. Enter the required values (and units where applicable).
  3. Calculate to see the answer and formula.
  4. Copy results to paste into homework or notes.

Why it’s useful

  • Quickly validate arithmetic and percentage steps.
  • Reduce mistakes by using a consistent formula format.
  • Speed up physics homework with common rearrangements.

Use cases & interpretation

  • Assignments: check intermediate steps without redoing everything.
  • Test prep: practice quick conversions and formula setups.
  • Lab reports: compute speed/distance/time consistently.

FAQs

Yes. This page supports URL hashes like #arithmetic, #percentage, and #physics.

Yes. The speed/distance/time calculator converts inputs into base units (meters and seconds) before computing, then shows outputs in multiple common units.
Compute GPA from courses, grades, and credits with a standard 4.0 scale.
To‑Do / Task List New
Simple student task list with local saving (localStorage), filters, and copy/export.
Pomodoro Timer New
Study in focused intervals (work/break) with customizable durations and a clear timer display.
Unit Converter New
Convert length, area, weight, volume, and temperature with full unit names and clear formulas.
Text Analysis Tool New
Word count, character count, reading time estimate, and keyword frequency for essays and papers.
Study Stats Dashboard New
Track study hours by subject, log sessions, and view weekly/monthly charts (saved locally).