---
title: "Math & Calculators: Free Online Tools & Guides | ShoutingNow"
description: Graphing calculators, math tools, and exam prep for students. Discover free online tools, expert guides, and practical tutorials on ShoutingNow, built…
url: "https://shoutingnow.com/guides/category/math-calculators/"
image: "https://shoutingnow.com/wp-content/uploads/2026/07/shoutingnow-preview-scaled.webp"
---

# Guide Category: Math & Calculators

Graphing calculators, math tools, and exam prep for students. Open any card to start calculating instantly, then explore related converters and guides for the full workflow.

## Items
- [Fuel Consumption Guide: MPG, L/100 km & km/L Chart](https://shoutingnow.com/guides/unit-conversion-guide/fuel-consumption-conversion/)
  Convert MPG (US and UK) and liters per 100 km with fuel consumption formulas, charts, realistic driving examples, and a free economy converter.
- [Data Transfer Rate Guide: Mbps, MB/s, Gbps Formulas](https://shoutingnow.com/guides/unit-conversion-guide/data-transfer-rate-conversion/)
  Convert Mbps, MB/s, Gbps, and related rates with bit-versus-byte clarity, formulas, tables, worked examples, and free data transfer converters.
- [Force Conversion Guide: Newtons, Pound-Force & kgf](https://shoutingnow.com/guides/unit-conversion-guide/force-conversion/)
  Convert newtons, pound-force, and kilogram-force with a lean force conversion guide covering formulas, common pairs, mistakes, and related torque converters.
- [Power Conversion Guide: Watts, Kilowatts & Horsepower](https://shoutingnow.com/guides/unit-conversion-guide/power-conversion/)
  Overview of power conversion for watts, kilowatts, and horsepower with formulas, reference tables, and links, hp↔kW deep dive lives on the dedicated blog.
- [Velocity Conversion Guide: mph, km/h, Knots & m/s Speed](https://shoutingnow.com/guides/unit-conversion-guide/velocity-conversion/)
  Convert mph, km/h, knots, and meters per second with lean velocity conversion formulas, quick tables, worked examples, and free speed converters.
- [Data Storage Conversion Guide: Bytes, KB, MB, GB & TB](https://shoutingnow.com/guides/unit-conversion-guide/data-storage-conversion/)
  Convert bytes, KB, MB, GB, and TB with decimal versus binary notes, formulas, tables, worked examples, and free data storage converter tools.
- [Volume Conversion Guide: Liters, Gallons, mL & Cubic Units](https://shoutingnow.com/guides/unit-conversion-guide/volume-conversion/)
  Convert liters, gallons, milliliters, and cubic meters with clear volume conversion formulas, tables, examples, and links to free ShoutingNow volume converters.
- [Temperature Conversion Guide: Formulas, Charts & Tables](https://shoutingnow.com/guides/unit-conversion-guide/temperature-conversion/)
  Convert Celsius, Fahrenheit, and Kelvin with temperature conversion formulas, charts, worked examples, and a free multi-unit temperature converter.
- [Time Conversion Guide: Seconds, Minutes, Hours & Days](https://shoutingnow.com/guides/unit-conversion-guide/time-conversion/)
  Convert seconds, minutes, hours, days, and weeks with a clear time conversion chart, formulas, worked examples, and free time converter tools.
- [Pressure Conversion Guide: PSI, Bar, kPa, atm & mmHg](https://shoutingnow.com/guides/unit-conversion-guide/pressure-conversion/)
  Convert PSI, bar, kilopascals, pascals, atmospheres, and mmHg with pressure conversion formulas, tables, worked examples, and free converters.
- [Energy Conversion Guide: Joules, Calories & Watt-Hours](https://shoutingnow.com/guides/unit-conversion-guide/energy-conversion/)
  Learn energy conversion between joules, calories, kilocalories, BTU, and watt-hours with practical examples, formulas, and free ShoutingNow converter links.
- [Length Conversion Guide: Formulas, Charts & DIY Examples](https://shoutingnow.com/guides/unit-conversion-guide/length-conversion/)
  Convert length for construction and DIY: cm, inches, feet, and meters with plain formulas, pre-calculated tables, worked examples, and free converter tools.
- [Weight Conversion Guide: lb to kg, Charts & Formulas](https://shoutingnow.com/guides/unit-conversion-guide/weight-conversion/)
  Convert weight for cooking, shipping, and health: pounds to kilograms, ounces, grams, and stone with formulas, charts, examples, and free converter tools.
- [Area Conversion Guide: Acres, Hectares, Sq Ft & Formulas](https://shoutingnow.com/guides/unit-conversion-guide/area-conversion/)
  Convert area for land and real estate: acres, hectares, square feet, and square meters with formulas, tables, worked examples, and free area converter tools.
- [Unit Conversion Guide: Charts, Calculators & Category Map](https://shoutingnow.com/guides/unit-conversion-guide/)
  Unit conversion hub: SI basics, metric vs imperial context, and 14 category guides from length to fuel, plus a free online unit conversion calculator.
- [TI-84 Plus CE Guide: Complete Manual (Beginner to Expert)](https://shoutingnow.com/guides/ti-84-plus-ce-guide/)
  Complete TI-84 Plus CE guide: graphing, fractions, statistics, SAT tips, notes, memory, reset, and charging, plus a free online emulator to practice keystrokes.

```json
[{"@context":"https://schema.org","@type":"Organization","name":"ShoutingNow","url":"https://shoutingnow.com/","logo":{"@type":"ImageObject","url":"https://shoutingnow.com/wp-content/themes/shoutingnow-theme/assets/images/logo.png"},"sameAs":["https://x.com/makani20","https://www.linkedin.com/in/makani20/","https://post-see.com"],"contactPoint":{"@type":"ContactPoint","contactType":"customer support","email":"support@shoutingnow.com","url":"https://shoutingnow.com/contact/"},"slogan":"Learn. Build. Grow."},{"@context":"https://schema.org","@type":"CollectionPage","name":"Guide Category: Math & Calculators","description":"Graphing calculators, math tools, and exam prep for students. Discover free online tools, expert guides, and practical tutorials on ShoutingNow, built…","url":"https://shoutingnow.com/guides/category/math-calculators/"},{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"ShoutingNow","item":"https://shoutingnow.com/"}]}]
```