Private browser calculators

Video Calculators

Plan cleaner exports before you render. Estimate bitrate, file size, upload time, streaming settings, frame timing, and aspect ratios without uploading anything.

Estimate

Plan size, bitrate, and upload time

Convert

Frames, seconds, timecode, and ratios

Private

All calculator math stays local

Planning a size-limited export?

Start with the bitrate calculator when you need a video to land under an email, platform, or handoff size limit.

Open Bitrate Calculator

Bitrate and size

Plan export size, bitrate, upload time, and compression targets.

Bitrate Calculator

Estimate the bitrate needed for a target file size.

Video Size from Bitrate

Estimate file size from bitrate, audio, and duration.

Upload Time Estimator

Estimate upload time from file size and upload speed.

Timing and stream planning

Convert frame timing and choose practical streaming bitrate ranges.

FPS Timecode Converter

Convert frames, seconds, and timecode at common FPS values.

Sample to Seconds

Convert audio samples to seconds, milliseconds, and back.

Streaming Bitrate Recommender

Pick a bitrate range from platform, resolution, FPS, and upload speed.

Layout math

Solve aspect ratios, crop/contain sizes, and platform dimensions.

Aspect Ratio Calculator

Calculate ratios, missing dimensions, contain sizes, and crop math.

Resolution & Scaling Calculator

Calculate fit, cover, crop, pad, and FFmpeg scale snippets.

Use the numbers

Once you have a target bitrate, size, timing, or ratio, continue into the editing tools that use those decisions.

Compress Video Video Publishing Tools Asset to Video Tools Video Assembly Tools