Aspect Ratio & Resolution Calculator
Design & VideoCalculate width and height pixel dimensions for any aspect ratio (16:9, 4:3, 21:9, 9:16) with live scaling and visual preview.
Standard Resolution Cheatsheet
Frequently Asked Questions
Common questions about this tool, calculation methods, and privacy.
1What is an aspect ratio?
An aspect ratio is the proportional relationship between the width and height of an image, video, or display screen. It is expressed as two numbers separated by a colon (e.g., 16:9), where the first number represents width and the second represents height.
2What is the standard aspect ratio for modern video and YouTube?
16:9 (widescreen) is the global standard for YouTube videos, television broadcasts, computer monitors, and streaming platforms. Common 16:9 resolutions include 1920×1080 (Full HD) and 3840×2160 (4K UHD).
3What aspect ratio is used for Instagram Reels, TikTok, and YouTube Shorts?
Vertical social media videos use the 9:16 aspect ratio (the vertical inverse of 16:9). The standard export resolution is 1080×1920 pixels.
Related In-Browser Tools
Explore more free utilities running directly on your device.
AC & Room BTU Calculator
Calculate the exact air conditioner cooling capacity (BTU & PK/Ton) required for any room size.
Live Currency Converter
Instant foreign exchange rate calculator with multi-currency conversion and inverted rates.
Multi-Mode Percentage Calculator
Compute percentage increase, decrease, differences, and discounts with step-by-step math.
Download & Transfer Time Calculator
Estimate how long it will take to download or upload files at any internet bandwidth speed.