Video File Size Calculator
Calculate video file size from resolution, frame rate, bit rate, and duration. Enter values for instant results with step-by-step formulas.
Formula
File Size (MB) = (Video Mbps + Audio Mbps) × Duration(s) / 8
Bitrate determines quality and file size. 1080p YouTube: 8 Mbps. 4K: 35-45 Mbps. Streaming: 3-6 Mbps. Lossless: 100+ Mbps.
Frequently Asked Questions
How accurate are the results from Video File Size Calculator?
All calculations use established mathematical formulas and are performed with high-precision arithmetic. Results are accurate to the precision shown. For critical decisions in finance, medicine, or engineering, always verify results with a qualified professional.
Can I share or bookmark my calculation?
You can bookmark the calculator page in your browser. Many calculators also display a shareable result summary you can copy. The page URL stays the same so returning to it will bring you back to the same tool.
Can I use Video File Size Calculator on a mobile device?
Yes. All calculators on NovaCalculator are fully responsive and work on smartphones, tablets, and desktops. The layout adapts automatically to your screen size.
How do I get the most accurate result?
Enter values as precisely as possible using the correct units for each field. Check that you have selected the right unit (e.g. kilograms vs pounds, meters vs feet) before calculating. Rounding inputs early can reduce output precision.
How do I interpret the result?
Results are displayed with a label and unit to help you understand the output. Many calculators include a short explanation or classification below the result (for example, a BMI category or risk level). Refer to the worked examples section on this page for real-world context.
Is Video File Size Calculator free to use?
Yes, completely free with no sign-up required. All calculators on NovaCalculator are free to use without registration, subscription, or payment.