🔁 Universal Conversion Calculator
Switch between core unit systems without opening multiple calculators.
Pick a category, enter a value, and convert between engineering-friendly units—ideal for quick verification, lab work, or day-to-day engineering decisions.
1 Nanometers (nm) equals
10 Angstroms (Å)
Quick Reference
Nanometers (nm)
1
Micrometers (µm)
0
Millimeters (mm)
0
Centimeters (cm)
0
Decimeters (dm)
0
Meters (m)
0
How to Use This Calculator
Choose a category
Pick the type of measurement—length, area, volume, mass, angle, energy, pressure, or density.
Set your units
Select the unit you have and the unit you want. The list updates automatically when you change categories.
Copy the conversion
Review the primary result and quick references for other popular units, then drop them into your workflow.
Formula
Standard Form: Target Value = Source Value × (Source → Base) × (Base → Target)
Each category converts through a base unit (meters, square meters, cubic meters, kilograms, radians, joules, pascals, or kg/m³).
Quick references repeat the process for other units so you can scan conversions at a glance.
Use the formula breakdown to confirm the calculation logic or perform the conversion manually if needed.
Full Description
Engineers, scientists, and students juggle dozens of units daily. Instead of bouncing between specialized calculators, this universal converter wraps the most common physical quantities into one consistent interface.
Each category routes through a canonical base unit (SI) to maintain precision. Changing categories keeps your last value but refreshes the unit list, so you can compare across dimensions without reloading the page.
Because the tool runs client-side, no data leaves your browser. Use it during lab sessions, on job sites, or while drafting reports without worrying about connectivity or privacy.
Frequently Asked Questions
Can I add more categories or units?
Yes. Extend the CATEGORY_CONFIGS map with new categories, import the appropriate conversion helpers, and the UI updates automatically.
How precise are the conversions?
Precision depends on each unit’s decimal setting. The calculator keeps more digits internally and displays a sensible number for readability.
Does it support imperial and metric units together?
Absolutely. Many categories include both metric and imperial units (e.g., inches, feet, miles) so you can bridge between systems.
Why limit quick references to six units?
Showing the entire unit list at once can be overwhelming. The quick reference highlights the most common alternatives for speed while keeping the layout tidy.