Clothing & Sewing
Clothing
Calculators & Tools
Bag Calculator
The Bag Calculator computes the volume of a bag from its three external dimensions and checks the result against major airline carry-on size limits. It also calculates the linear dimension (length plus width plus height), which airlines use as an alternative size check. Use it to confirm whether a bag qualifies as a carry-on before you travel and to compare sizes across luggage options.
Hat Size Calculator
The Hat Size Calculator converts your head circumference measurement into hat sizes across the US, UK, and European sizing systems. It takes a measurement in centimetres or inches and returns the corresponding hat size in all three formats. Use it to buy hats online, confirm sizing before purchasing, and convert between the sizing conventions used by different manufacturers and countries.
Jeans Size Calculator
The Jeans Size Calculator converts your waist, hip, and inseam measurements into standard jeans sizing across US, UK, EU, and international formats. It accounts for brand-specific sizing conventions and provides a size range rather than a single number to allow for fit variation between cuts and fabrics. Enter your measurements in inches or centimeters to get your recommended size across major sizing systems.
Shoe Size Calculator
The Shoe Size Calculator converts your foot length in centimetres or inches into shoe sizes across US men's, US women's, UK, European, and Japanese sizing systems. It also provides guidance on measuring your foot correctly for the most accurate result. Use it to buy shoes online, convert between international size systems, and confirm your size before purchasing from unfamiliar brands or countries.
Jacket Size Calculator
The Jacket Size Calculator converts your chest, shoulder width, and body length measurements into jacket and suit sizes across US, UK, European, and Italian sizing systems. It accounts for fit type (regular, slim, or athletic) and returns the recommended size in each format. Use it to buy suits, blazers, and sport coats online without a tailor and to convert between sizing systems when shopping internationally.
Bra Size Calculator
The Bra Size Calculator works out your band and cup size from an underbust and a bust measurement in inches or centimetres. It returns your US size plus UK, EU, French, and Australian conversions, your sister sizes for brand-to-brand fit adjustments, and a side-by-side comparison of the modern snug method against the legacy plus-four method that explains why bra calculators so often disagree. Use it as the size to try first, then refine with the sister sizes.
T-Shirt Size Calculator
The T-Shirt Size Calculator converts a chest measurement into a letter size from XS to 3XL for a men's, women's, or unisex fit. It returns the chest fit range, the US/UK letter, the EU number, and the cross-gender equivalent that translates the same chest between women's and men's sizing, the question that trips up most shoppers. You can enter a body chest circumference or a well-fitting shirt measured flat pit-to-pit, which the tool doubles, and it includes a full size chart and fit guidance.
Hexagon Quilt Calculator
The Hexagon Quilt Calculator works out hexagon geometry and how many hexagons a quilt needs for English paper piecing. It converts between the three ways a hexagon is measured, side length, flat-to-flat width, and point-to-point height, to prevent the most common cutting mistake, and gives the area, the fabric piece to cut per hexagon with seam allowance, the hexagons per yard, and the number of hexagons plus single-colour yardage to cover a quilt with a waste margin. Enter any hexagon size and an optional quilt dimension to plan the whole project.
Dress Size Calculator
The Dress Size Calculator converts your bust, waist, and hip measurements into US, UK, EU, and AU dress sizes. It maps each of the three measurements to its own size and recommends the largest, the size that fits your widest point, because a dress is far easier to take in than to let out. It flags your body shape when the measurements spread across sizes and explains how vanity sizing makes your usual number unreliable. Use the result as the size to order first, then check the brand chart.
Curtain Panel Calculator
The Curtain Panel Calculator works out how many curtain panels to buy for a window, the rod width to install, and the stackback, the space the open curtains occupy when bunched to the sides. From the window width, fullness, and panel width it gives the panel count split per side, the recommended rod width, each panel's closed coverage, and a stackback estimate that warns you when the rod needs to extend wider so the open curtains clear the glass. It also includes a quick panels-by-window-width rule and optional cost.
Fabric Calculator
The Fabric Calculator works out how much fabric to buy for a sewing, quilting, or home-decor project. It nests your pieces across the usable fabric width, adds seam allowance, rounds each piece up to the pattern repeat, and applies shrinkage and waste to recommend a purchase rounded to the nearest quarter yard, in yards and metres. It flags pieces too wide for the fabric, estimates cost from a price per yard, and includes a width converter for when a pattern calls for one fabric width but you have another.
Tablecloth Size Calculator
The Tablecloth Size Calculator works out the cloth size to buy or make from your table size and the drop you want, for round, square, rectangular, and oval tables. The cloth equals the table size plus twice the drop, and the tool returns the exact size needed, the nearest standard ready-made size to order, a seating estimate, and optional sewing yardage with piecing. Drop presets cover casual, formal, and floor-length looks, with floor length computed from the table height.
Quilt Binding Calculator
The Quilt Binding Calculator works out the fabric needed to bind a quilt, for both straight-grain and bias double-fold binding. From the quilt width and length it computes the binding length, the number of straight-grain strips and their yardage with the diagonal-join count, or the size of the fabric square to cut continuous bias from. It compares straight grain against bias for your quilt, estimates the finished binding width, and can estimate cost. Straight grain suits square corners; bias is required for curved or scalloped edges.
Weighted Blanket Calculator
The Weighted Blanket Calculator works out how heavy a weighted blanket should be from body weight, using the 10 percent rule for adults and a lighter 5 to 8 percent for children. It returns the recommended weight, a safe range, and the nearest stocked size, plus a size recommendation and prominent safety guidance. Children are only suitable from age 3 and at least 50 lb, the blanket must always be removable unaided, and people with certain medical conditions should consult a doctor. This is general guidance, not medical advice.
Quilt Calculator
The Quilt Calculator works out the backing, batting, and binding a quilt needs from the finished quilt top dimensions. It adds your overhang to each side, nests the backing across the fabric width and chooses the seam direction that wastes the least fabric, recommends a stock batting package, and counts the binding strips and yardage. It also compares standard pieced fabric against seamless 108-inch wide backing and can estimate cost. Standard quilt size presets are included.
Half Square Triangle Calculator
The Half Square Triangle Calculator gives the size of squares to cut for HSTs in quilting, for the 2, 4, and 8-at-a-time methods, in quilter-friendly eighth-inch fractions. It shows the finished and unfinished sizes, the number of squares needed for a target HST count, and an oversize-and-trim option for accuracy. A reverse mode takes a precut square such as a charm or layer cake and returns the finished HST it yields. Use it to cut precisely for any HST quilt block.
Sock Size Calculator
The Sock Size Calculator works out your sock size from your foot length or shoe size, and clears up the common confusion that sock size is foot length, not shoe size. It returns the letter size, the traditional numeric band, your foot length, and the shoe-size range the sock fits, for men, women, or kids. Foot length is the most accurate input, while a shoe size is estimated using the standard foot-to-shoe relationship. Each sock size stretches over two to three shoe sizes.
Curtain Size Calculator
The Curtain Size Calculator works out how wide your curtains need to be, how many ready-made panels to buy, and how much fabric to purchase if you are sewing them. It applies a fullness ratio set by your heading style to the rod width, since curtains must be far wider than the window to gather into folds. A buy mode gives the number of panels for proper fullness, and a sew mode returns the fabric widths, cut length, and total yardage, with guidance on rod placement and finished length.
Belt Size Calculator
The Belt Size Calculator works out your belt size from your pant size, a measured waist, or an existing belt, and untangles the three numbers people confuse. A belt is sized to its middle hole, so it should be about two inches larger than your pant size. The tool returns the US inch size, the European centimetre size, and the letter size for men, women, or kids, plus the fit range and a belt-width guide. The most reliable method is measuring a belt you already wear.