PX to VH Converter
Convert pixels to viewport height (vh) units instantly with our free px to vh calculator for responsive design and fluid layouts.
(100px ÷ 1080px) × 100 = 9.26vh
Height of the viewport in pixels (e.g., 1080px for desktop)
How to Use Our PX to VH Converter
Converting px to vh is simple with our calculator. Learn how to convert pixels to viewport height units for responsive web design in three easy steps.
Set Viewport Height
Enter the viewport height in pixels. This is typically 1080px for desktop, 1024px for tablets, or 667px for mobile devices.
Enter Pixel Value
Type the pixel value you want to convert. The converter accepts whole numbers and decimals for precise measurements.
Get VH Result
The converter instantly calculates the vh value. Copy the result and use it in your CSS for responsive, viewport-based layouts.
PX to VH: Understanding the Difference
Before using our px to vh converter, learn the key differences between pixels and viewport height units for responsive design and fluid layouts.
What are Pixels (PX)?
Fixed Size Unit
Pixels are absolute units that stay the same size regardless of viewport size. 100px is always 100px.
Limited Flexibility
Pixel-based heights don't adapt to different screen sizes, making responsive design more challenging.
Best Use Cases
Ideal for borders, fixed-height elements, and designs where precise control is required.
What are Viewport Height (VH) Units?
Relative to Viewport
1vh equals 1% of the viewport height. On a 1080px screen, 1vh = 10.8px. The size automatically scales with the viewport.
Truly Responsive
VH units automatically adjust based on screen height - perfect for full-height sections and layouts that scale proportionally.
Responsive Design Benefits
VH-based layouts scale seamlessly across all device heights, from mobile to desktop displays.
PX to VH Conversion Formula
vh = (Pixels ÷ Viewport Height) × 100
Viewport Height is the height of the browser window in pixels
Example: 100px ÷ 1080px × 100 = 9.26vh
Example: 50px ÷ 1080px × 100 = 4.63vh
Example: 200px ÷ 1080px × 100 = 18.52vh
Step-by-Step Calculation Example
Step 1: Identify pixel value → 150px
Step 2: Identify viewport height → 1080px
Step 3: Divide pixels by viewport height → 150 ÷ 1080 = 0.1389
Step 4: Multiply by 100 → 0.1389 × 100 = 13.89vh
Result: 150px = 13.89vh on a 1080px viewport
PX to VH Conversion Tables
Quick reference tables for common pixel to vh conversions. Use these as a guide for your responsive designs across different viewport heights.
Desktop: 1080px
| Pixels | VH |
|---|---|
| 50px | 4.63vh |
| 100px | 9.26vh |
| 150px | 13.89vh |
| 200px | 18.52vh |
| 300px | 27.78vh |
| 400px | 37.04vh |
Tablet: 1024px
| Pixels | VH |
|---|---|
| 50px | 4.88vh |
| 100px | 9.77vh |
| 150px | 14.65vh |
| 200px | 19.53vh |
| 300px | 29.30vh |
| 400px | 39.06vh |
Mobile: 667px
| Pixels | VH |
|---|---|
| 50px | 7.50vh |
| 100px | 14.99vh |
| 150px | 22.49vh |
| 200px | 29.99vh |
| 300px | 44.98vh |
| 400px | 59.97vh |
💡Pro Tip: Using Conversion Tables
These reference tables are perfect for quick lookups when building responsive layouts. Remember that vh values are always relative to the viewport height - choose the table that matches your target device size. For custom values, use our converter tool above.
Real-World CSS Examples
See how to use pixel to vh conversion in real CSS code for common responsive design scenarios.
❌ Fixed Height (Pixels)
.hero-section {
height: 600px;
padding: 80px 20px;
}
.full-screen {
min-height: 1080px;
}
.header {
height: 80px;
padding: 20px;
}This fixed-height layout doesn't scale with the viewport and may look disproportionate on different screen sizes.
✓ Responsive (VH Units)
.hero-section {
height: 55.56vh;
padding: 7.41vh 1.04vw;
}
.full-screen {
min-height: 100vh;
}
.header {
height: 7.41vh;
padding: 1.85vh;
}This responsive layout scales proportionally with the viewport height, providing a consistent visual experience across all screen sizes.
Full-Height Sections
/* Desktop viewport: 1080px */
.hero {
min-height: 100vh;
padding: 9.26vh 0; /* 100px */
}
.section {
min-height: 50vh;
padding: 4.63vh 0; /* 50px */
}
.footer {
height: 18.52vh; /* 200px */
}Full-height sections scale perfectly across devices, maintaining visual impact regardless of screen height.
Vertical Spacing System
/* Based on 1080px viewport */
.section {
padding-top: 9.26vh; /* 100px */
padding-bottom: 9.26vh; /* 100px */
}
.card {
margin-bottom: 3.70vh; /* 40px */
}
.button {
padding: 1.48vh 2.08vw; /* 16px 40px */
}Vertical spacing scales proportionally, ensuring consistent visual rhythm across different viewport heights.
⚠️Common Mistakes to Avoid
Using VH for Small Elements
Avoid vh for borders, icons, or small UI elements that should remain consistent. Use pixels or rem instead.
Mobile Address Bar Issues (Critical!)
On mobile browsers, 100vh is set to the screen height WITHOUT the address bar, causing content to overflow when the address bar is visible. This is a major issue in Safari and Chrome mobile.
Solution: Use New Viewport Units (2023+)
dvh- Dynamic Viewport Height: adjusts when address bar shows/hidessvh- Small Viewport Height: always accounts for address bar (safest)lvh- Large Viewport Height: viewport with address bar hidden
/* Old way - problems on mobile */
.hero { height: 100vh; }
/* New way - works perfectly */
.hero { height: 100dvh; }No Min/Max Constraints
Always use min() or max() functions to prevent sections from becoming too large or too small: height: min(50vh, 600px)
Not Using calc() for Complex Layouts
Combine vh with other units using calc(): height: calc(100vh - 80px) for full height minus fixed header.
Advanced VH Techniques with calc()
Master advanced CSS techniques by combining vh units with calc() function for complex, responsive layouts.
Full Height Minus Fixed Header
/* Perfect for content areas */
.main-content {
height: calc(100vh - 80px);
/* Full height minus 80px header */
overflow-y: auto;
}
.hero-below-nav {
min-height: calc(100dvh - 60px);
/* Mobile-safe with dvh */
}Use calc() to create full-height sections while accounting for fixed headers, navigation bars, or footers.
Responsive with Min/Max Constraints
/* Prevent too large or too small */
.hero {
height: clamp(400px, 80vh, 900px);
/* Min 400px, ideal 80vh, max 900px */
}
.section {
min-height: min(60vh, 600px);
/* Never exceed 600px */
}Combine vh with clamp(), min(), or max() to set boundaries and ensure optimal display across all screen sizes.
Multi-Section Split Layouts
/* Split screen with header/footer */
.header { height: 80px; }
.footer { height: 60px; }
.split-left {
height: calc(100vh - 140px);
/* Full height minus header+footer */
width: 50%;
}Create complex layouts by calculating available space after accounting for multiple fixed-height elements.
Combining VH with Other Units
/* Mix vh, vw, and rem */
.card {
padding: calc(2vh + 1rem);
margin: calc(3vh + 20px);
}
.responsive-section {
min-height: calc(50vh + 10vw);
/* Scales both vertically & horizontally */
}Combine vh with rem, em, vw, or px for sophisticated responsive spacing that adapts to multiple factors.
💡Pro Tip: calc() Best Practices
• Always include spaces around operators: calc(100vh - 80px) not calc(100vh-80px)
• Use dvh instead of vh in calc() for mobile compatibility: calc(100dvh - 60px)
• Nest calc() for complex calculations: calc(calc(100vh / 3) - 20px)
• Test on real mobile devices - desktop dev tools don't fully simulate mobile browser address bar behavior
When to Convert PX to VH?
Knowing when to convert px to vh is essential for CSS best practices. Use our px to vh converter for these common scenarios.
Use VH Units For:
- ✓Full-screen hero sections and landing pages
- ✓Vertical centering and spacing that scales with viewport
- ✓Modal dialogs and overlay heights
- ✓Scrollable content areas with fixed proportions
- ✓Multi-section landing pages with viewport-based navigation
Use Pixels For:
- •Navigation bars and headers with fixed heights
- •Form elements and input fields
- •Buttons and small UI components
- •Borders and dividers
- •Content that requires precise, consistent sizing
Frequently Asked Questions About PX to VH Converter
Common questions about our px to vh calculator and converting pixels to viewport height units in CSS.
How do I convert PX to VH?
To convert px to vh, divide the pixel value by the viewport height and multiply by 100. The formula is: vh = (px ÷ viewport height) × 100. For example, if you have a 100px element on a 1080px viewport: 100 ÷ 1080 × 100 = 9.26vh. Our px to vh converter performs this calculation automatically for you.
What viewport height should I use for conversion?
The viewport height depends on your design target. Common values are 1080px for desktop displays, 1024px for tablets, and 667px for mobile devices (iPhone 8). Choose the viewport size that matches your primary design breakpoint. Many designers use 1080px as a baseline for desktop-first designs or 667px for mobile-first approaches.
What's the difference between VH and percentage?
VH and percentage serve different purposes for height. VH is always relative to the viewport height (the browser window), while percentage is relative to the parent container's height. Use vh for elements that should scale with the entire viewport, like full-screen sections. Use percentage for elements that should scale relative to their parent container's height.
Why is 100vh not working correctly on mobile? (Critical Issue!)
This is one of the most common problems with vh units! On mobile browsers (Safari, Chrome), the address bar and bottom navigation bar affect the viewport calculation. Mobile browsers set 100vh to the screen height WITHOUT the address bar, so when the address bar is visible, content gets cut off at the bottom. This causes frustrating layout issues where users can't see the bottom of your full-height sections.
Solution: Use New Viewport Units (2023+)
- •
dvh(Dynamic Viewport Height): Automatically adjusts as the address bar shows/hides - best for interactive content - •
svh(Small Viewport Height): Always uses the smallest viewport (with address bar visible) - safest option, prevents overflow - •
lvh(Large Viewport Height): Uses the largest viewport (address bar hidden) - use with caution
/* Replace this: */
.hero { height: 100vh; }
/* With this for mobile compatibility: */
.hero { height: 100dvh; } /* or 100svh */Should I use VH for all vertical spacing?
No, VH is best for large sections and layouts that need to scale with viewport height. For typography and small spacing, use REM or EM units for better accessibility and user control. Combine units strategically: use vh for section heights, rem for typography and small spacing, and pixels for borders and fixed elements. Consider using clamp() to set minimum and maximum bounds: height: clamp(400px, 50vh, 800px).
Can I combine VH with other CSS units?
Yes! CSS calc() function allows you to combine vh with other units. For example: height: calc(100vh - 80px) creates a full-height section minus a fixed header. You can also use min(), max(), and clamp() for responsive constraints: height: min(80vh, 900px) limits maximum height while staying responsive. This flexibility makes vh units powerful for modern responsive design.
When should I use VH instead of pixels?
Use VH for full-screen hero sections, landing pages, modal overlays, and any content that needs to scale with the browser height. Use pixels for navigation bars, buttons, borders, form elements, and small UI components that should remain consistent regardless of viewport size.
Rule of thumb: If the element should fill or scale with the screen height, use vh. If it should stay the same size, use px or rem.
Do I need to convert px to vh for every element?
No! Only convert elements that benefit from viewport-based scaling. Most websites use a hybrid approach: vh for major sections and layout containers, rem for typography and spacing, and px for borders and precise details. Over-using vh can make your design unpredictable on extreme screen sizes. Use our converter to experiment, then test on real devices to find the right balance.