Fitted Sheet Size Calculator: Easy and Accurate

Fitted Sheet Size Calculator

Finding the perfect fitted sheet for your mattress can be tricky. Too small and it pops off the corners. Too large and it wrinkles and bunches up. Our fitted sheet size calculator takes the guesswork out of shopping.

Simply enter your mattress dimensions and let our calculator do the work. You’ll get exact measurements for the fitted sheet you need. No more returning sheets that don’t fit.

Whether you have a standard twin bed or a custom-sized mattress, this tool helps you find the right fit. It accounts for mattress depth too, which is crucial for modern pillow-top and memory foam mattresses.

Fitted Sheet Size Calculation

Calculating the right fitted sheet size involves three key measurements. You need the length, width, and depth of your mattress. The depth is especially important because it determines how deep the sheet pocket needs to be.

Most standard mattresses range from 8 to 14 inches deep. But pillow-top and memory foam mattresses can be much thicker. Some reach 18 inches or more. Your fitted sheet needs to accommodate this depth plus a few extra inches to tuck under.

The general formula is simple. Add the depth measurement to both the length and width. Then add 4 to 8 inches for tucking allowance. For example, a 60″ × 80″ mattress that’s 12″ deep needs a sheet that measures at least 72″ × 92″ when flat.

Key Measurements You Need

Start by measuring your mattress length from head to foot. Use a tape measure and go from edge to edge. Write this number down.

Next, measure the width from side to side. Again, measure from edge to edge at the widest point. This gives you the second dimension.

Finally, measure the depth. This is the height from the top of the mattress to the bottom. Don’t include the box spring or bed frame. Just the mattress itself.

Understanding Pocket Depth

Pocket depth is the measurement from the top of the fitted sheet to the edge of the elastic. This needs to be at least 2 inches deeper than your mattress thickness. Most sheets have pockets ranging from 12 to 18 inches.

If your mattress is 14 inches thick, look for sheets with at least a 16-inch pocket depth. This extra room ensures the sheet stays put. It also makes bed-making easier.

Different Types of Fitted Sheets

Fitted sheets come in several varieties. Each type serves different needs and preferences. Understanding these options helps you choose the best sheet for your situation.

Standard Fitted Sheets

These are the most common type. They have elastic all around the edges. Standard fitted sheets work well for mattresses up to 14 inches deep. They’re widely available and come in all standard bed sizes.

Most cotton and cotton-blend sheets fall into this category. They’re easy to find and typically the most affordable option. They work for most people with standard mattresses.

Deep Pocket Fitted Sheets

Deep pocket sheets have extra-tall sides. They’re designed for mattresses 15 to 18 inches thick. These sheets accommodate pillow-tops, euro-tops, and thick memory foam mattresses.

The elastic is stronger and the pockets are reinforced. This prevents the sheet from popping off even on very thick mattresses. They cost slightly more but are essential for thicker beds.

Extra Deep Pocket Fitted Sheets

For mattresses over 18 inches thick, you need extra deep pocket sheets. These can handle depths up to 22 inches or more. They’re less common but necessary for specialty mattresses.

High-end memory foam mattresses and adjustable beds often require this type. Always check the pocket depth specification before buying.

Split Fitted Sheets

Split sheets are made for adjustable beds. Each side can move independently. These sheets come in two pieces that connect at the center or stay separate.

They allow couples to adjust their side of the bed without disturbing the other person. The sheets stay in place even when the bed is in different positions.

Choosing the Right Fitted Sheet Size

Selecting the correct size involves more than just knowing your mattress dimensions. You need to consider fabric type, weave, and how the sheet is constructed. These factors affect how the sheet fits.

Material Considerations

Cotton sheets may shrink slightly after washing. Buy a size that allows for 3-5% shrinkage if you’re choosing 100% cotton. Pre-washed or pre-shrunk cotton minimizes this issue.

Jersey knit and other stretchy fabrics are more forgiving. They conform to the mattress shape better. This makes them ideal for mattresses with irregular dimensions.

Microfiber and polyester blends typically don’t shrink. They maintain their size through many wash cycles. This makes sizing more predictable.

Elastic Quality Matters

Look for sheets with elastic all around, not just at the corners. Full elastic provides better grip and prevents slipping. The elastic should be durable and maintain its stretch over time.

Some premium sheets have extra-wide elastic bands. These distribute tension more evenly. They also last longer than narrow elastic strips.

Common Sizing Mistakes

Don’t assume all “queen” sheets fit all queen mattresses. Mattress dimensions can vary by manufacturer. Always measure your specific mattress rather than relying on the size label.

Forgetting to account for mattress toppers is another common error. If you use a 3-inch topper, add that to your depth measurement. Otherwise, your sheet won’t fit properly.

How to Use Fitted Sheet Size Calculator

Using our calculator is straightforward. Start by gathering your measurements. You’ll need a tape measure and a few minutes to measure your mattress accurately.

Step-by-Step Instructions

First, enter your mattress length in the length field. You can switch between inches and centimeters using the unit toggle buttons. The calculator handles conversions automatically.

Next, input the width measurement. Again, choose your preferred unit. Make sure you’re measuring the actual mattress, not the bed frame.

Then add the depth measurement. This is critical for getting the right pocket depth. Measure from the top surface down to where the mattress meets the box spring or platform.

Optionally, you can select a standard size from the dropdown. This auto-fills typical dimensions if you prefer not to measure. But custom measurements always provide better accuracy.

Reading Your Results

After clicking Calculate, the results appear below the calculator. You’ll see recommended sheet dimensions in both inches and centimeters. The calculator also suggests the minimum pocket depth you need.

You’ll get recommendations for sheet types that match your mattress. This helps when shopping online or in stores. Use these measurements to filter products and find the perfect fit.

Copying and Sharing Results

Use the Copy Result button to save your measurements to your clipboard. You can paste them into notes or send them to someone helping you shop. The Share Result button lets you share via email or messaging apps.

Fitted Sheet Size Chart

This comprehensive chart shows standard mattress sizes and their corresponding fitted sheet dimensions. Remember that these are typical measurements. Always verify your specific mattress dimensions.

International Size Variations

Bed sizes vary significantly across countries. UK single beds measure 90 × 190 cm, different from US twin sizes. European sizes follow the metric system with dimensions like 140 × 200 cm for doubles.

Australian bed sizes also differ from American standards. Their queen measures 152 × 203 cm, while their king is larger at 183 × 203 cm. Always check local sizing standards when shopping internationally.