iformat.io
Professional-grade metric to imperial converter, temperature conversion calculator, and engineering unit converter trusted by students, engineers, scientists, and professionals worldwide. Convert length, weight, area, volume, energy, power, speed, pressure, data storage, and 25+ specialized measurement categories instantly.
Professional unit conversion tools for every scientific, engineering, academic, and everyday measurement need. From basic metric to imperial conversions to advanced scientific calculations.
Convert between all length measurements: meters to feet, inches to centimeters, kilometers to miles, yards to meters, millimeters to inches, and 50+ other length units. Perfect for construction, engineering, and everyday measurements.
Accurate weight conversions between kilograms to pounds, grams to ounces, stones to kilograms, tons to pounds, and 40+ mass units. Essential for cooking, fitness, shipping, and scientific calculations.
Convert between Celsius to Fahrenheit, Kelvin to Celsius, Rankine temperature scales, and more. Perfect for weather, cooking, scientific research, and international temperature conversions.
Convert square meters to square feet, acres to hectares, square inches to square centimeters, and 30+ area measurements. Essential for real estate, construction, landscaping, and land surveying.
Convert liters to gallons, milliliters to fluid ounces, cubic meters to cubic feet, and 45+ volume units. Perfect for cooking, chemistry, engineering, and liquid measurements.
Convert kilometers per hour to miles per hour, meters per second to feet per second, knots to mph, and 25+ speed units. Essential for automotive, aviation, marine, and physics calculations.
Specialized unit conversion tools for professional engineers, scientists, researchers, and technical applications requiring precision calculations.
Joules, calories, kilowatt-hours, BTU, electron volts, and 20+ energy units.
Convert Energy Units →Watts, horsepower, BTU/hour, kilowatts, and 15+ power measurement units.
Convert Power Units →Pascal, PSI, bar, atmosphere, torr, and 18+ pressure measurement units.
Convert Pressure Units →Bytes, kilobytes, megabytes, gigabytes, terabytes, and digital storage units.
Convert Data Units →Step-by-step guide to accurate metric to imperial conversions, temperature calculations, and scientific unit conversions for students, engineers, and professionals.
Choose from 25+ specialized categories including length, weight, temperature, area, volume, speed, energy, power, pressure, data storage, and advanced scientific measurements. Each category contains dozens of specific units.
Select from comprehensive dropdown menus featuring metric units (meters, kilograms, Celsius), imperial units (feet, pounds, Fahrenheit), and specialized scientific units. Our database includes 1000+ measurement units.
Input any number including decimals, fractions, or scientific notation. Our converter supports unlimited precision calculations with up to 15 decimal places for professional-grade accuracy required in engineering and scientific applications.
View precise converted values instantly with real-time updates as you type. No delays, refresh required, or page reloads. Results include conversion formulas, calculation steps, and alternative unit suggestions.
NIST-standard conversion factors with 15 decimal place accuracy. Perfect for engineering calculations, scientific research, and professional applications requiring exact measurements.
Generate comprehensive conversion tables for ranges of values. Export results to PDF or Excel for documentation, reports, or reference materials.
View the mathematical formulas and conversion factors used in calculations. Educational feature helps students understand the science behind unit conversions.
Save frequently used conversions as favorites and access your conversion history. Quick access to common measurements you use regularly.
Fully responsive design works perfectly on smartphones and tablets. Touch-friendly interface with gesture support for easy mobile conversions.
Developers can integrate our conversion engine into their applications via REST API. Perfect for building measurement tools and calculators.
Quick reference conversion tables and examples for the most frequently searched measurement conversions worldwide.
| From | To | Multiply by |
|---|---|---|
| Feet | Meters | 0.3048 |
| Inches | Centimeters | 2.54 |
| Miles | Kilometers | 1.60934 |
| Yards | Meters | 0.9144 |
| From | To | Multiply by |
|---|---|---|
| Pounds | Kilograms | 0.453592 |
| Ounces | Grams | 28.3495 |
| Stones | Kilograms | 6.35029 |
| Tons (US) | Kilograms | 907.185 |
| From | To | Multiply by |
|---|---|---|
| Gallons (US) | Liters | 3.78541 |
| Fluid Ounces | Milliliters | 29.5735 |
| Cups (US) | Milliliters | 236.588 |
| Pints (US) | Liters | 0.473176 |
Learn about the history, science, and practical applications of different measurement systems used worldwide.
The International System of Units (SI) is the modern form of the metric system and is the most widely used measurement system globally. Based on seven fundamental units, it provides a coherent system for scientific and everyday measurements.
The Imperial system, also known as US Customary units, is primarily used in the United States. While less common globally, it remains important for everyday measurements in the US and some specific industries worldwide.
Match your precision needs to the application. Engineering calculations may require 6+ decimal places, while cooking measurements typically need only 1-2 decimal places for practical use.
For important calculations in construction, medicine, or engineering, always verify conversions using multiple sources or manual calculations to ensure accuracy and safety.
Memorize frequently used conversions like 1 inch = 2.54 cm, 1 pound = 0.454 kg, and common temperature points to speed up your work and improve efficiency.
Common questions about our unit converter and measurement conversions.