Free Online Image Resize Calculator

Original Photo
Resulting Photo

The aspect ratio of the Original Photo:

The new dimensions: Width: Height:

Introducing the Image Resize Calculator, a solution crafted by our team of professional photographers and software experts.

Way #2: Download Batch Picture Resizer Software

When faced with the task of resizing a large volume of images, consider leveraging the efficiency and versatility of SoftOrbits Batch Picture Resizer.

Batch Picture Resizer

Easily solve your image resizing problem using SoftOrbits software Batch Picture Resizer. Whether you need to resize your photos for social media, website or printing, Batch Picture Resizer makes the process quick and simple.

 Download for Free

Using Batch Picture Resizer: Step-by-Step Guide

Download and Install the Batch Picture Resizer

Download the Batch Picture Resizer software from the SoftOrbits website and install it on your PC. Once the installation is complete, launch the program.

Download and Install Batch Picture Resizer..

Add Files to the Program

Click on the Add Files button to add the files you want to resize to the program. Alternatively, you can drag and drop the photos into the program window.

Add Images to the Program..

Select the Resizing Method

Click on the Resize tab and select the resizing method you want to use. You can choose from several options: percentage, exact size, and size limits.

Select the Resizing Method..

Set the Resizing Parameters

After selecting the resizing method, set the resizing parameters according to your requirements. You can specify the height and width of the image, the percentage of the original size, or the maximum size limit.

Set the Resizing Parameters..

Preview and Adjust the Resized Pictures

Click on the Preview tab to view the resized pictures. If you're unsatisfied with the results, adjust the parameters and preview the pictures again until you're happy with the outcome.

Preview and Adjust the Resized pictures..

Save the Resized Pictures

Click on the Save button to save the resized photos. Choose the file format, location, and name for the new photos, and click Start to complete the process.

Save the Resized Images..

Batch Picture Resizer Batch Picture Resizer

Resize and convert pictures in full auto mode!

 Download for Free

Video Tutorials

Image Resize Calculator - Proportional Scale Calculator

How to Use Batch Picture Resizer in Bulk while Maintaining Proportions?

How does Batch Picture Resizer works in a bulk mode while maintaining proportions? Easily resize your pics with SoftOrbits' Batch Picture Resizer tool and ensure they are resized proportionally without distorting their aspect ratio.
Proportion keep aspect ratio..

Batch Picture Resizer's Features

  • Supports various image formats, including JPG, BMP, PNG, GIF.
  • Different resizing modes (fit to width/height, stretch, crop).
  • Add visual watermarks.
  • Proportional scale percentage calculator (scale up calculator).
  • Image resize percentage calculator and proportional scaler.
  • Automatically find resize image dimensions.
  • The software has a preview window that allows you to see how your photos will look after resizing, and you can compare the original and resized versions side by side.
  • Adjusting the colour and brightness.

With these advanced features, Batch Picture Resizer offers much more than basic photo resizing.

Way #3: Manual Calculation of Image Resizing Proportions

Calculation of Image Resizing Proportions..

When resizing images, maintaining the correct proportions is essential to ensure that the picture doesn't appear stretched or distorted. While many tools can automatically calculate dimentions for you, it's also helpful to understand how to do it manually.

To manually calculate the sizes of an image, you'll need to know the original dimensions. Calculate the width and height by dividing the expected and actual measurements.
For example, if the original size is 1000 pixels wide and you want to resize it to be 500 pixels wide, you would divide 500 by 1000 to get a scaling factor of 0.5. You would then apply this scaling factor to both the original's width and height to get the resized dimensions.

💁🏻 Expert Suggestions: Understanding Image Ratios: A Guide for Beginners

As a programmer, I have often struggled with image ratios while working on various web projects.

Ratios refer to the relationship between the width and height. They affect how photos are displayed on different devices and web pages. For example, different social media platforms have specific requirements for dimensions and ratios.

️Posted by:
Eugene UstinenkovEugene📅 Last updated on:  2024-02-19

Here's a brief guide to help you understand image ratios:

Aspect Ratio

The aspect ratio of an image is the relationship between the width and height of the picture. It is usually two numbers: 4:3, 16:9, or 1:1. The first represents the width, and the second represents the height.

With an aspect ratio of 4:3 means that the width is four times the height. An aspect ratio of 16:9 means the width is 16 times the height.

Crop Tool

A crop tool is essential for adjusting an aspect ratio. It allows to make exact aspect ratio. Most photo editing software, including Adobe Photoshop, has a crop tool to adjust an aspect ratio.


Resizing means changing its dimensions by reducing or increasing its size. If you change the width, you must adjust the height to maintain the aspect ratio.

Way #4: Online Image Resizer Calculators

Explore the Online Image Resizer by SoftOrbits, a cutting-edge tool that goes beyond mere resizing. With its integrated Proportional Calculator, it ensures that your images maintain their original aspect ratios.

Online Image Resizer

TOP 3 Online Image Resizer Calculators

1. PicResize

1. PicResize..

PicResize is a popular online resizer that allows you to resize your images proportionally and easily. All you need to do is upload your photos, select the desired dimensions, and the tool will automatically resize the photo to fit the output scale.


Easy to use with a simple and intuitive interface

Supports a variety of image formats

Allows you to save images in different file types and sizes


Free version limits the number of images you can resize per day

Watermark appears on resized images in the free version

Our overall rating: 4   

2. ResizePixel

2. ResizePixel..

ResizePixel is another great online resizer that offers a variety of features, including smark aspect ratio calculation. Upload your files, enter the desired dimensions, and the tool will resize it while maintaining its aspect ratio.


Supports a wide range of image formats

Allows you to resize multiple images at once

Offers additional editing tools such as cropping, rotating, and flipping images


Free version limits the maximum file size you can upload

Watermark appears on resized images in the free version

Our overall rating: 4.5   

3. BeFunky

3. BeFunky..

BeFunky is a popular online photo editor that includes an picture resizer tool. With BeFunky, you can easily resize your files to fit the proportions by selecting the desired dimensions, and the tool will do the rest.


Offers a variety of editing tools, including filters, effects, and text overlays

Save files in different file types and sizes

Integrates with popular social media platforms


Free version limits the number of photos you can resize per day

Watermark appears on resized files in the free version

Our overall rating: 3.5   

App NameFunctionsUsabilityOverall QualityProsConsPriceOther Criteria
PicResize 4    3    4    Easy to use, freeMay have limited functionalityFreeNo download required
ResizePixel 3    4    3    Can handle large images, intuitive interfaceMay have slow processing speedFreeNo download required
Desktop Software 5    5    5    Robust functionality, customizable optionsRequires download and installation$50Can handle large batch resizing tasks

Feel free to modify the table to fit your needs, such as adding or removing columns or changing the styling.

Making the Right Choice for Effective Resizing

Finding the right solution for proportional resizing can be challenging, but it can be a breeze with the right tools. While various online resizer tools are available, desktop software such as Batch Picture Resizer can offer a more efficient and user-friendly experience, especially for batch processing.
Easily solve your image resizing problem using SoftOrbits software Batch Picture Resizer. Whether you need to resize your photos for social media, website or printing, Batch Picture Resizer makes the process quick and simple.
 Download for Free

🙋Frequently Asked Questions

It is a tool that allows you to resize images while maintaining their aspect ratio. This means that if you change the size of one dimension, the other dimension will automatically adjust to maintain the same proportions.

This software works by keeping the image's aspect ratio intact while resizing it. You enter the original dimensions of the image and the desired dimensions, and it will calculate the proportions needed to maintain the aspect ratio.

Yes, it can help you resize images for social media platforms by allowing you to enter the desired dimensions for the specific platform, such as Instagram or Facebook, and automatically adjust the other size to maintain the aspect ratio.

Yes, this proportional scaler tool can help you determine the print size of your photo based on its original height and actual size.

No, it is a web-based tool that can be accessed for free without downloading or installing. But you can download Batch Picture Resizer.

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