UD5 Toolkit
NPV Calculator - Online Net Present Value & IRR
Enter cash flows and discount rate to compute Net Present Value and Internal Rate of Return. Finance 101.
Pressure Converter - Online Bar PSI Pascal Atmosphere Tool
Pressure Converter
Instant conversion between bar, psi, pascal, atmosphere, and many more.
Real‑time update · Click to copy value
Frequently Asked Questions
1 PSI = 0.0689476 bar. Multiply your PSI value by 0.0689476 to get bar. Our converter does it instantly – just enter the PSI value and select PSI as the input unit.
Standard atmospheric pressure (1 atm) is exactly 101,325 Pa (pascals), or 1.01325 bar.
Different industries and regions use different units. PSI is common in tire pressure (USA), bar in Europe, Pascal is the SI unit, mmHg is used in medicine, and atm in chemistry.
Yes, it accepts negative values for vacuum or gauge pressure readings. The conversion works identically for both positive and negative numbers.
We use high‑precision conversion factors (up to 9 significant digits). Values are displayed with up to 6 decimal places, which is more than sufficient for most engineering and everyday uses.
Number Line Generator - Online Printable Math Visual Aid
Create custom number lines (0-20, negative, fractions, decimals) for math education. Adjustable ticks and labels. Instant download.
Nernst Equation Calculator - Online Electrochemical Potential
Calculate half-cell and full cell potentials under non-standard conditions. Enter concentrations and temperature. Local.
Named HTML Entities Reference - Online Quick Chart
Searchable grid of all named HTML character entities with previews. Click to copy &, <, © etc. For web devs.
Markdown TOC Generator - Online Table of Contents
Paste your Markdown and automatically generate a linked table of contents based on headings. Insert at the top. Local magic.
TOTP Generator (Offline) - Online Two‑Factor Code
Generate Time‑based One‑Time Passwords locally by entering a base32 secret. Verify your authenticator setup without a phone.
Python range() to List - Online See Generated Numbers
Write a Python range expression and instantly see the list of numbers it produces. Quick playground for beginners.
Error.cause Property Demo - Online Chained Errors
Create errors with the cause option and see chained error objects. Learn error wrapping for better debugging.
Images to PDF Merger - Online Combine JPG/PNG into One
Select multiple images, arrange their order, and merge them into a single PDF document. Works offline in your browser.
HTML Table to Markdown Converter - Online Quick Transform
Paste an HTML `<table>` snippet and instantly get a clean Markdown table. Supports colspan and alignment hints. Local.
Color Temperature to RGB - Online Kelvin to Hex Converter
Enter a Kelvin value (1000‑40000) and see the approximate white‑balance color. Photography and lighting reference.
Number to Words Converter - Online Write Out Currency
Convert a numeric amount into English words, perfect for writing checks or legal documents. Supports USD/GBP styles.
Hijri to Gregorian Date Converter - Online Islamic Calendar
Convert between Gregorian and Hijri (Islamic) dates. Approximate visual reference. Local algorithm.
Julian Date Converter - Online Calendar to JD
Convert a Gregorian calendar date to its Julian Day Number and vice versa. Used in astronomy and mainframe computing.
Date to Unix Epoch Converter - Online Human to Timestamp
Convert any human‑readable date to a Unix timestamp in seconds or milliseconds. Also shows ISO 8601. Clean interface.
Cooking Measurement Converter - Online Cups, Grams & Ounces
Convert between common cooking units: cups → grams, teaspoons → ml, Fahrenheit → Celsius. Essential baking tool.
Gray Code Converter - Online Binary to Reflected Code
Translate between binary and Gray code (reflected binary code). See the bit changes. Useful for digital logic.
Decimal to IEEE 754 Converter - Online Float Representation
Convert a decimal number to 32-bit single precision IEEE 754 format. See sign, exponent, mantissa bits. Developer tool.
Roman Numeral Date Converter - Online MMXXVI Style
Convert any date into Roman numerals (day‑month‑year) for tattoos or special occasions. Clean and local.
Minutes to Decimal Hours - Online Time Conversion Tool
Convert minutes to decimal hours and vice versa. Essential for billing and payroll. Instant conversion with a handy chart.
Text to Handwriting Converter - Online Fake Handwritten Note
Paste text and convert it into a realistic handwriting image using different fonts and ink colors. Download as PNG. Fun for notes.
Text to NATO Phonetic Alphabet - Online Converter
Convert any phrase into the NATO phonetic alphabet (Alpha, Bravo, Charlie…). Copy or hear pronunciation. Useful for call centers.
Data Transfer Rate Converter - Online Mbps Gbps & KiB/s
Convert network and data transfer speeds: bps, Kbps, Mbps, Gbps, KiB/s, MiB/s. A must when comparing internet plans. Fast and local.
Radiation Converter - Online Gray Rad Rem & Sievert
Convert between units of absorbed dose and equivalent dose (Gray, Rad, Rem, Sievert). Educational and reference. Local calculation.
Power Converter - Online Watt Horsepower & Kilowatt Tool
Convert power units: watt, kilowatt, horsepower, BTU/h. Quick reference for electrical and mechanical engineering. Browser-based.
Energy Converter - Online Joule Calorie BTU & kWh Tool
Convert energy units: Joule, calorie, BTU, kilowatt-hour, electronvolt. Useful for science and household energy calculations. Fully local.
Pig Latin Translator - Online Fun Language Converter
Translate English text to Pig Latin and decode back. A classic word game for all ages. Rules-based translation runs in your browser.
Audio Converter - Online Convert WAV MP3 OGG Locally
Convert audio files between popular formats like WAV, MP3, and OGG directly in the browser. No upload, fast encoding using WebAudio and ffmpeg wasm.
HTML to Markdown Converter - Online Clean Content Extractor
Strip HTML tags and convert web content to plain Markdown. Preserve headings, lists, and links. Perfect for content migration. All processing in browser.
JSON to XML Converter - Online Data Interchange Tool
Seamlessly convert JSON objects into valid XML documents. Control root element naming and attribute formatting. Entirely local, keeping your data safe.