# Size

Browse 88 online Size tools for working with size-related formats and operations. Use them in your browser with server-side processing.

> Canonical page: https://elysiatools.com/en/tags/size

## Overview

Explore 88 Size tools for processing, converting, validating, and managing size-related files and data through a browser interface. No software installation is required.

## Frequently asked questions

### What can I do with Size tools?

Size tools let you process, convert, validate, and manage size-related files and data through a browser-based interface.

### How is my data handled?

Tools are operated through your browser, while processing runs on Elysia Tools servers. Text inputs are not stored, and uploaded files are automatically deleted after 6 hours.

### How many Size tools are available?

This tag currently includes 88 online Size tools.

## Tools

- [A/B Test Significance Calculator](https://elysiatools.com/en/tools/ab-test-significance-calculator): Compute conversion-rate or mean differences, 95%/99% confidence intervals, two-sided p-values (Z-test for proportions, Welch t for continuous metrics), lift, sample size for 80%/90% power, recommended experiment days, plus sequential-testing and Bonferroni multiple-comparison warnings.
- [Adjusted R-Squared Calculator](https://elysiatools.com/en/tools/adjusted-r-squared-calculator): Calculate adjusted R squared from R squared, sample size, and predictor count
- [AI RAG Chunk Quality Scorer](https://elysiatools.com/en/tools/ai-rag-chunk-quality-scorer): Score candidate RAG chunk-splitting schemes for a document across four metrics — coherence (clean sentence/paragraph boundaries), coverage (topic focus / key-term concentration), context overlap health, and chunk-size consistency — then compare up to three schemes side by side and recommend the best. Pure offline heuristics, no model calls.
- [Audio Metadata Compress](https://elysiatools.com/en/tools/audio-metadata-compress): Compress or remove metadata and embedded artwork to reduce file size
- [Optimize AVIF](https://elysiatools.com/en/tools/avif-to-optimized-avif): Optimize AVIF images for better compression and performance while maintaining visual quality
- [Convert AVIF to PDF](https://elysiatools.com/en/tools/avif-to-pdf): Convert AVIF images to PDF format with customizable page size, orientation, and quality settings
- [Batch Image Compress](https://elysiatools.com/en/tools/batch-compress): Compress multiple images with quality control, output format selection, and size optimization
- [Bit to Byte](https://elysiatools.com/en/tools/bit-to-byte): Convert bits to bytes with configurable decimal precision
- [Bits to GB](https://elysiatools.com/en/tools/bits-to-gb): Convert bits to gigabytes with decimal vs binary interpretation, alternate-system comparison, and network-speed-aware transfer estimates
- [Bits to MB](https://elysiatools.com/en/tools/bits-to-mb): Convert bits to megabytes with decimal vs binary interpretation, alternate-system comparison, and network-speed-aware transfer estimates
- [Bubble Chart Generator](https://elysiatools.com/en/tools/bubble-chart-generator): Generate customizable bubble charts from data with three dimensions (x, y, size)
- [Byte to Bit](https://elysiatools.com/en/tools/byte-to-bit): Convert bytes to bits with configurable decimal precision
- [Bytes to GB](https://elysiatools.com/en/tools/byte-to-gb): Convert bytes to gigabytes with decimal vs binary interpretation, alternate-system comparison, and network-speed-aware transfer estimates
- [Byte to MB](https://elysiatools.com/en/tools/byte-to-mb): Convert bytes to megabytes using the decimal MB standard with configurable precision
- [Bytes to KB](https://elysiatools.com/en/tools/bytes-to-kb): Convert bytes to kilobytes using decimal storage units
- [Bytes to MB](https://elysiatools.com/en/tools/bytes-to-mb): Convert bytes to megabytes using decimal storage units
- [Central Limit Theorem Demonstrator](https://elysiatools.com/en/tools/central-limit-theorem-demonstrator): See the Central Limit Theorem in action: draw samples from a non-normal source distribution (uniform, exponential, Poisson, or Bernoulli), plot the histogram of sample means, and overlay the predicted Normal curve N(μ, σ²/n). Compare empirical vs theoretical mean and standard error, and watch convergence tighten as the sample size grows.
- [Chunk Array](https://elysiatools.com/en/tools/chunk-array): Split array into chunks of specified size using lodash _.chunk
- [Concrete Mix Design (ACI 211)](https://elysiatools.com/en/tools/concrete-mix-design): Design a normal-weight concrete mix per ACI 211.1-91 absolute-volume method. Inputs: slump, nominal max aggregate size, air entrainment, water-cement ratio w/c, fineness modulus of sand, and dry-rodded coarse-aggregate density. Outputs the per-cubic-meter masses of cement, water, fine and coarse aggregate plus the mass ratio.
- [CSV Splitter](https://elysiatools.com/en/tools/csv-splitter): Split CSV content by specified number of rows per file. Perfect for processing large datasets, dividing data for analysis, batch processing, and managing file size limits. Features: - Split CSV by row count - Support multiple output formats - Preserve header row in each split - Flexible output format options - Support for large datasets - Fast and efficient processing Common Use Cases: - Split large CSV files for processing - Divide data for parallel processing - Create manageable data chunks - Export data in different formats - Prepare data for batch operations - Manage file size limitations
- [Duct Size Calculator (Flow Rate × Velocity)](https://elysiatools.com/en/tools/duct-size-calculator): Size a duct cross-section from the air flow rate Q and the design mean velocity v: area A = Q/v. Circular duct diameter D = √(4A/π). Rectangular duct with aspect ratio r = a/b gives b = √(A/r) and a = r·b, plus the ASHRAE equivalent diameter D_eq = 1.30·(a·b)^0.625/(a+b)^0.25. Flow rate in m³/s/m³/h/CFM, velocity in m/s; dimensions reported in mm and inches.
- [Duplicate Column Remover](https://elysiatools.com/en/tools/duplicate-column-remover): Remove duplicate columns from CSV data with flexible detection strategies. Perfect for cleaning datasets, removing redundant information, and optimizing data structure. Features: - Detect columns with identical headers - Find columns with identical data content - Support for case-sensitive/insensitive matching - Multiple removal strategies available - Preserve data integrity - Support for large datasets - Fast and efficient processing Common Use Cases: - Clean up merged datasets - Remove redundant data columns - Optimize data for analysis - Prepare data for machine learning - Reduce file size and complexity - Standardize data format
- [ECharts Theme Token Extractor](https://elysiatools.com/en/tools/echarts-theme-token-extractor): Extract design tokens — colors, numbers, font sizes and strings — from an ECharts theme JSON and export them straight into your design system. Paste a theme object (the kind registered via echarts.init(dom, themeName)) and the tool walks every leaf, tagging each color (with optional named/rgb → hex normalization), spacing number, font size and string, then emits clean CSS variables, a Tailwind theme.extend config, Style Dictionary tokens.json, or SCSS variables. Bridges the gap between an ECharts visualization theme and Figma/CSS/Tailwind design tokens without copying each value by hand.
- [Effect Size Calculator](https://elysiatools.com/en/tools/effect-size-calculator): Calculate Cohen d, Hedges g, Cohen h for proportions, or correlation r effect sizes from summary statistics

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