Precise Conversions & Calculations Fast, accurate and free online converters and calculators
From color conversion to hyperfocal distance – professional online calculators in 5 languages. Free, precise and ready to use.
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How others use umrechner.online
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Anna, 28
Graphic Designer
"I convert Pantone colors to CMYK daily for print jobs. The color converter saves me hours!"
To the Graphic Tools
Marco, 45
Mechanical Engineer
"For hydraulic calculations and material weights, I use the physics calculators. Precise and fast!"
To the Physics Calculators
Lisa, 19
Business Student
"Math homework? Percentages, rule of three and interest calculations - the calculators help me enormously!"
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The tools our visitors use most frequently
Gross-Net-Gross Calculator
Finance & Taxes
300x
Convert steps to distance
Health & Fitness
257x
Convert precious metals
Weights & Masses
249x
Screen sizes
Lengths & Distances
182x
Percentage Calculator
Mathematics & Calculation
171x
Convert body height
Lengths & Distances
145x
area calculate
Mathematics & Calculation
136x
Calculate CO2 footprint
Car & Mobility
133x
Fuel calculator
Car & Mobility
127x
Customize cooking times
Kitchen & Cooking
126x
Reiseentfernungen convert
Lengths & Distances
126x
Professional Color Converter
Graphics, Photo & Design
120x
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Lengths & Distances
5
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Graphics, Photo & Design
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8
Finance & Taxes
5
Ultra-Pure Gas Systems
6
Mathematics & Calculation
6
Physics & Science
7
Car & Mobility
6
Health & Fitness
5
Construction & Crafts
8
Kitchen & Cooking
4
Electricity & Energy
2
Simple Converters
10
Why umrechner.online?
Precise Results
Our conversions are mathematically exact and consider all relevant decimal places for highest accuracy.
Secure Calculation
All calculations are performed server-side with validated algorithms. Your data is protected and not stored.
Mobile Optimized
Perfect for on-the-go - our converter works optimally on all devices and screen sizes.
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Available 24/7, free and without registration. No limits, no ads, just precise conversions.
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