Best Ratio calculator Online 2025

Our free Ratio Calculator is simple, reliable, and perfect for everyone—from students to professionals. It simplifies ratios, converts them to percentages, solves proportions, and finds missing values instantly.

Stop wasting time doing calculations manually. Use our Ratio Calculator and get accurate, human-readable results in seconds!

An Easy Guide to Ratio Understanding

Ever pondered how to quickly compare two numbers? A ratio can help with that! A ratio illustrates how two or more quantities relate to one another. The ratio of apples to oranges, for instance, is 10:5, which may be simplified to 2:1 if you have 10 apples and 5 oranges.

Not only are ratios used in math classes, but they are also used in design, economics, culinary, and even fitness. Additionally, we have a free Ratio Calculator that does all the calculations fast to make your life easier.

We use ratio calculator all the time in our daily lives. For example, we use them to talk about the odds of something happening, to express rates in finance, to represent maps and models as smaller versions of their actual size, and in cooking and baking. It would be easy to figure out how much butter, sugar, and flour are needed if someone intended to make 5 cakes, each of which needed a 1:2:3 ratio of those three ingredients. If you multiply the ratio by five, you get a 5:10:15 ratio. You can then use this to figure out how much sugar, flour, and butter you need for the cake recipe.

Common Sizes and Aspect Ratios for Screens and Videos
The aspect ratio is the ratio of the sizes of a geometric object in different dimensions. For a rectangle, the aspect ratio is the ratio of its height to its width. Aspect ratios are sometimes used to determine the size of tires, paper, and normal photographic prints. However, they are most often employed to determine the size of computer screens, mobile phone screens, and videos. So, below is a list of common computer screen/video resolutions and aspect ratios.

Name	Aspect Ratio	Width (pixel)	Height (pixel)
480p	3:2	720	480
576p	5:4	720	576
720p	16:9	1280	720
1080p	16:9	1920	1080
2160p (4K UHD)	16:9	3840	2160
4320p (8K UHD)	16:9	7680	4320
8640p	16:9	15360	8640
SVGA	4:3	800	600
WSVGA	~17:10	1024	600
XGA	4:3	1024	768
XGA+	4:3	1152	864
WXGA	16:9	1280	720
WXGA	5:3	1280	768
WXGA	16:10	1280	800
SXGA (UVGA)	4:3	1280	960
SXGA	5:4	1280	1024
HD	~16:9	1360	768
HD	~16:9	1366	768
SXGA+	4:3	1400	1050
WXGA+	16:10	1440	900
HD+	16:9	1600	900
UXGA	4:3	1600	1200
WSXGA+	16:10	1680	1050
FHD	16:9	1920	1080
WUXGA	16:10	1920	1200
QWXGA	16:9	2048	1152
WQHD	16:9	2560	1440
WQXGA	16:10	2560	1600

You can also check our standard deviation calculator to find out how much the individual data points in a set usually differ from the average (mean).

The Operation of Our Ratio Calculator

It’s simple to use our calculator. What it does for you is as follows:

• reduces any ratio to its most basic form.
• transforms ratios into percentages
• identifies missing proportional numbers
• swiftly compares several ratios

Let’s say you need to modify a recipe during cooking. The Ratio Calculator provides precise results in a matter of seconds, saving you the trouble of doing the arithmetic yourself.

Important Elements You’ll Love

What makes our ratio tool unique is as follows:

• Simplify ratios by reducing complex numbers, such as 50:100, to their most basic form, 1:2.
• Convert to Percentages: Convert 1:4 ratios to 25%.
• Use a proportion solver to find the missing values in equations such as 3:6 = 4:x.
• Use the Ratio Converter to swiftly scale measurements, designs, maps, and recipes.
• Whether you’re a home cook, teacher, student, or designer, these tools reduce errors and save time.

Detailed Instructions for Using the Ratio Calculator

Even if math isn’t your strongest subject, using the ratio calculator is simple:

• Type in the figures you wish to compare.
• Decide whether you wish to solve, simplify, or convert.
• Select “Calculate.”
• Instantly view your results, including any missing values, percentages, or simplified ratios.
• You may use it anywhere because it is compatible with PCs, tablets, and phones.

Easy Ratios Simplified

Have you ever found yourself stuck at a ratio like 18:24? Do not be concerned! It is quickly made simpler by our ratio calculator.

18:24 to 3:4

50:75 → 2:3

No more guesswork or laborious computations. Both professionals and students will find this ideal.

Ratio to Percentage Conversion

Percentages can sometimes make ratios easier to understand. For instance:

1:4 → 25%

2:5 → 40%

Our ratio to % calculator conducts all of the calculations and provides a detailed explanation.

Completing Proportions in a Matter of Seconds

Two ratios are equivalent, according to proportions. For instance:

4:x = 3:6

The proportion solver uses basic cross-multiplication to find x fast. This is helpful for swiftly completing school assignments, scaling recipes, and modifying designs.

When Is a Ratio Calculator Useful?

A ratio calculator is useful in a variety of circumstances:

• Math assignments or tests at school
• Preparation and recipe modifications
• Financial and business analysis
• Projects involving engineering, architecture, and design
• Exercise regimens (such as macro ratios)
• Scaling of a map or blueprint
• This tool is your best buddy whenever you need to quickly and precisely compare figures.

Conclusion

Our free ratio calculator is easy to use, dependable, and ideal for all users, including professionals and students. It solves proportions, simplifies ratios, converts them to percentages, and quickly locates missing quantities.

Give up wasting time on manual calculations. In only a few seconds, use our Ratio Calculator to obtain precise, readable results!