# MiniConvert

> Free file and data converters for CSV, JSON, Base64, hex, binary, and more. Quick, browser-based conversion tools — no upload needed, runs locally.

Every tool and article on MiniConvert is free to use — no sign-up required. The links below are the primary, canonical resources on this site.

## Tools

- [Number to Words](https://miniconvert.com/tool/number-to-words/): Convert numbers to written English words. Supports integers, decimals, currency, and ordinal numbers for check writing.
- [Roman Numeral Converter](https://miniconvert.com/tool/roman-numeral-converter/): Convert between standard numbers and Roman numerals (1-3999). Includes validation for proper Roman numeral formatting.
- [Binary Converter](https://miniconvert.com/tool/binary-converter/): Convert between decimal, binary, octal, and hexadecimal number systems. Essential for programming and computer science.
- [Percentage Calculator](https://miniconvert.com/tool/percentage-calculator/): Calculate percentages, percentage changes, and differences. Three modes for all common percentage calculations.
- [Fraction to Decimal](https://miniconvert.com/tool/fraction-to-decimal/): Convert fractions to decimals and decimals to fractions. Simplify to lowest terms and handle mixed numbers.
- [Cooking Converter](https://miniconvert.com/tool/cooking-converter/): Convert cooking measurements — cups, tablespoons, grams, ml, ounces. Ingredient-specific conversions for baking accuracy.
- [Shoe Size Converter](https://miniconvert.com/tool/shoe-size-converter/): Convert shoe sizes between US, UK, EU, and CM systems for men, women, and children. Includes width sizing guide.
- [Fuel Efficiency Converter](https://miniconvert.com/tool/fuel-efficiency-converter/): Convert fuel efficiency between MPG, km/L, and L/100km. Compare fuel economy across measurement systems worldwide.
- [Tip Calculator](https://miniconvert.com/tool/tip-calculator/): Calculate tips for restaurants and services. Split bills between groups with custom tip percentages and rounding.
- [BMI Calculator](https://miniconvert.com/tool/bmi-calculator/): Calculate Body Mass Index from height and weight. Metric and imperial units with BMI category explanation.
- [Data Size Converter (Bytes to TB)](https://miniconvert.com/tool/data-size-converter/): Convert bytes, KB, MB, GB, TB, PB instantly. See decimal (SI) and binary (IEC) results side by side. No sign-up, no ads, works offline.
- [File Size Unit Translator](https://miniconvert.com/tool/file-size-unit-translator/): Convert file sizes instantly across all units — bytes, KB, KiB, MB, MiB, GB, GiB, TB, TiB, bits, and more. See every unit at once with accurate decim…
- [Bits vs Bytes Converter](https://miniconvert.com/tool/bits-vs-bytes-converter/): Convert bits to bytes, Mbps to MBps, GB to GiB and more. Covers all SI and IEC prefixes with instant in-browser math. No signup needed.
- [Download Time Estimator](https://miniconvert.com/tool/download-time-estimator/): Estimate download or upload time instantly. Enter file size and connection speed to get an accurate time breakdown in hours, minutes, and seconds.
- [Base64 Size Overhead Calculator](https://miniconvert.com/tool/base64-size-overhead-calculator/): Calculate exactly how much larger Base64 encoding makes your file. See byte-level math: overhead bytes, % increase, padding chars, and data URI size …
- [Image Dimension to File Size Estimator](https://miniconvert.com/tool/image-size-estimator/): Estimate image file size from width, height, bit depth, and format. Get uncompressed raw size plus compressed ranges for JPEG, PNG, WebP, BMP, GIF, a…
- [Video Bitrate & File Size Calculator](https://miniconvert.com/tool/video-bitrate-calculator/): Calculate video file size from bitrate and duration, or find the bitrate needed to fit a target size. Includes audio track and container overhead.
- [Storage Capacity Planner](https://miniconvert.com/tool/storage-capacity-planner/): Calculate how many photos, songs, or videos fit on your drive. Enter storage capacity and file type to get instant, accurate counts with breakdown.
- [Bytes to Human-Readable Formatter](https://miniconvert.com/tool/bytes-to-human-readable/): Convert raw byte numbers to human-readable sizes instantly. Choose binary (KiB/MiB/GiB) or decimal (KB/MB/GB) units with custom decimal precision. No…
- [Hex / Decimal / Binary Size Converter](https://miniconvert.com/tool/hex-decimal-binary-converter/): Convert numbers between hex, decimal, and binary instantly. Built for developers doing low-level file, memory, and address work. Free, offline, no li…
- [Text & String Size Calculator](https://miniconvert.com/tool/text-string-size-calculator/): Calculate the exact byte size of any text in UTF-8, UTF-16, and ASCII encodings instantly. Understand why character count and byte count differ.
- [Upload Limit Checker](https://miniconvert.com/tool/upload-limit-checker/): Check if your file fits Gmail, WhatsApp, Outlook, Discord, Slack, and web form upload limits. Get instant results and practical tips to reduce oversi…

## Articles

- [Second Business Line App: g100.us Just Works](https://miniconvert.com/second-business-line-app-g100us/): Get a second business line app in minutes with g100.us — calls, SMS & WhatsApp on one number, 100+ countries, instant activation, no contracts.
- [Multi-Country Business Numbers with g100.us: Go Global Fast](https://miniconvert.com/multi-country-business-numbers-g100us/): Get multi-country business numbers in 100+ countries with g100.us — one number for calls, SMS & WhatsApp, flat pricing, instant activation.
- [How to Estimate Storage Needs Before Buying a Drive](https://miniconvert.com/estimate-storage-before-buying/): Learn how to estimate drive storage needs using your actual media library, monthly growth rate, and a simple capacity formula — so your next purchase…
- [Hitting Upload Limits Everywhere? Here's How to Shrink Any File](https://miniconvert.com/shrink-any-file-upload-limits/): Stop guessing at compression. Learn targeted fixes for oversized PDFs, images, and videos so you can clear any upload limit without sacrificing quali…
- [Binary vs Decimal Units: Which Should You Actually Use?](https://miniconvert.com/binary-vs-decimal-units/): GiB vs GB explained: understand binary vs decimal storage units, why your 1TB drive shows 931GB, and which unit your converter tools actually use.
- [Inside Base64: Why Encoding Makes Files Bigger](https://miniconvert.com/inside-base64-encoding-overhead/): Base64 adds ~33% to file sizes — here's the exact math, why it was invented, and where the tradeoff is genuinely worth it versus avoidable overhead.
- [What Average File Sizes Really Look Like in 2026](https://miniconvert.com/average-file-sizes-2026/): Real file size data for 2026: photos (3MB–120MB), 4K video (400MB–20GB/min), lossless audio, PDFs, and AI-era apps. What the numbers actually look li…
- [No, Deleting Big Files Doesn't Always Free the Space You Think](https://miniconvert.com/deleting-files-space-myths/): Debunking storage myths: why deleting big files doesn't always free space, how macOS purgeable space works, and what OS free-space numbers really mea…
- [Mbps vs MBps: Your Questions About Speed and Size Answered](https://miniconvert.com/mbps-vs-mbps-questions/): Confused by Mbps vs MBps? We answer your top questions about the bit/byte mixup behind internet speed plans and real-world download rates.
- [9 File Size Mistakes That Slow Down Your Website](https://miniconvert.com/file-size-mistakes-slow-website/): Discover 9 common file size mistakes that slow down websites, from unoptimized images to heavy third-party scripts, with practical fixes for each.
- [The Day a 4GB File Killed My Email: A Size-Limit Survival Story](https://miniconvert.com/email-attachment-size-story/): Hit email attachment limits with a 4GB file? Real workarounds that work — Drive links, HandBrake compression, format conversion, and why access beats…
- [How to Calculate Any File's Size by Hand in 5 Steps](https://miniconvert.com/calculate-file-size-by-hand/): Learn to calculate image, text, and video file sizes manually in 5 steps — with real formulas and compression ratios, no tools needed.
- [Why Your 1TB Drive Only Shows 931GB (And It's Not a Scam)](https://miniconvert.com/why-1tb-shows-931gb/): Why does a 1TB drive show only 931GB? The real answer: decimal vs binary units. Manufacturers and OSes measure differently — no bytes are missing.
- [KB, MB, GB, TB Explained: A Plain-English Guide to Data Sizes](https://miniconvert.com/data-sizes-explained/): Learn what KB, MB, GB, and TB really mean with simple, relatable comparisons. No jargon — just clear explanations of every data size unit you'll ever…
- [Cooking Measurement Conversions — Complete Kitchen Guide](https://miniconvert.com/cooking-measurement-conversions-guide/): Binary number system explained. How computers use binary, conversion methods, and practical applications in programming.
- [BMI Calculator — Understanding Body Mass Index](https://miniconvert.com/bmi-calculator-understanding-body-mass/): Percentage calculation shortcuts. Mental math tricks, common percentage scenarios, and avoiding common calculation mistakes.
- [Shoe Size Chart — International Conversion Guide](https://miniconvert.com/shoe-size-chart-international-guide/): Cooking measurement guide. Cup to gram conversions, ingredient density differences, and why bakers prefer weight measurements.
- [Percentage Calculations — Master Every Type of Percent Problem](https://miniconvert.com/percentage-calculations-master-problems/): Roman numeral history and usage guide. Origin, rules, modern applications, and interesting facts about Roman counting.
- [Number Systems Explained — Binary, Octal, Decimal, Hex](https://miniconvert.com/number-systems-binary-octal-hex/): Number to words guide. Writing amounts on checks, legal documents, and formal correspondence correctly.

## About & Policies

- [About Us](https://miniconvert.com/about-us/)
- [Contact Us](https://miniconvert.com/contact-us/)
- [Privacy Policy](https://miniconvert.com/privacy-policy/)
- [Terms of Service](https://miniconvert.com/terms-of-service/)
- [Disclaimer](https://miniconvert.com/disclaimer/)
- [Blog](https://miniconvert.com/blog/)

## Notes

- Full URL list: https://miniconvert.com/sitemap.xml
- Content is original and maintained by MiniConvert. Attribution is appreciated when cited.