Converting 50x70 cm to inches results in approximately 19.69 x 27.56 inches. This specific dimension is a cornerstone of international framing and printing standards, frequently used for medium-to-large posters, fine art prints, and photography. Because it is a metric-based standard, finding exact matches in United States retail environments often requires a nuanced understanding of conversion and custom mounting.
The Mathematical Breakdown of 50x70 cm to Inches
To understand the conversion of 50x70 cm into the Imperial system, one must use the standard conversion factor where 1 inch is equal to exactly 2.54 centimeters. This mathematical constant is the foundation for all architectural, design, and manufacturing transitions between metric and imperial measurements.
The Exact Calculation
When we perform the division for each dimension, we get the following precise figures:
- Width: 50 cm ÷ 2.54 = 19.685039... inches
- Height: 70 cm ÷ 2.54 = 27.559055... inches
In the world of professional printing and framing, these numbers are typically rounded to two decimal places for practical use. Therefore, 19.69 x 27.56 inches is the industry-accepted equivalent. If you are shopping for a frame in a region that uses inches, you will rarely find a frame labeled exactly with these decimals; instead, you will look for frames specifically labeled as "50x70 cm" or opt for a custom-cut solution.
Why the Decimal Matters
While a fraction of an inch might seem negligible, in precision framing, it is the difference between a print that fits perfectly and one that ripples or requires trimming. A 50x70 cm print is slightly smaller than a standard 20x28 inch American frame. If you attempt to place a 50x70 cm print into a 20x28 inch frame without a mat, you will have a gap of approximately 0.31 inches (roughly 8mm) on the width and 0.44 inches (roughly 11mm) on the height.
The 50x70 cm Standard in the Global Market
The 50x70 cm size is often referred to as the "B2" equivalent in commercial printing, though it is not technically an ISO 216 B2 size (which is 50.0 x 70.7 cm). Instead, 50x70 cm has become a "de facto" standard because of its widespread adoption by major international retailers.
The Influence of European Retailers
The popularity of 50x70 cm in North America is largely driven by European home furnishing giants like IKEA. Their "Ribba" and "Lomviken" frame series have made 50x70 cm a household staple. Because these retailers mass-produce frames in metric sizes, consumers often find themselves owning a frame that doesn't fit standard US-sized posters (like 18x24 inches or 24x36 inches).
Aspect Ratio and Composition
The 50x70 cm format features an aspect ratio of 5:7. This ratio is highly regarded by photographers and artists because it offers a more elongated view than the 4:5 ratio (common in 8x10 or 16x20 prints) but is less stretched than the 2:3 ratio common in 35mm film photography. It provides a balanced canvas that works exceptionally well for both portrait-style photography and landscape art.
Printing Requirements for 50x70 cm
If you are a photographer or digital artist preparing a file to be printed at 50x70 cm in 2026, you must consider pixel density to ensure a sharp, professional result. The quality of a large-format print is determined by the Pixels Per Inch (PPI).
Minimum and Optimal Resolutions
To achieve a high-quality print, the standard benchmark is 300 DPI (Dots Per Inch). However, for larger posters viewed from a distance of a few feet, 150 to 200 DPI is often sufficient.
| Target Quality | DPI/PPI | Required Resolution (Pixels) |
|---|---|---|
| High Definition (Fine Art) | 300 | 5,906 x 8,268 pixels |
| Standard Commercial | 200 | 3,937 x 5,512 pixels |
| Minimum Acceptable | 150 | 2,953 x 4,134 pixels |
| Digital/Web Only | 72 | 1,417 x 1,984 pixels |
When preparing your files, always include a "bleed" area if the image is intended to wrap around a canvas or go to the very edge of the paper. A standard bleed of 3mm (approx. 0.12 inches) on all sides is recommended. This brings your total file size to 50.6 x 70.6 cm.
Choosing the Right Frame for a 50x70 cm Print
Finding a frame for a 19.69 x 27.56 inch print requires deciding between "off-the-shelf" convenience and custom precision. In 2026, the market for frames has expanded significantly, offering several pathways for this specific dimension.
Option 1: Metric-Specific Ready-Made Frames
As mentioned, the easiest route is purchasing a frame specifically manufactured to 50x70 cm. These are ubiquitous in Europe and increasingly common in US-based online marketplaces. The advantage is a "drop-in" fit with no trimming or matting required.
Option 2: Oversized Frames with a Mat
If you cannot find a 50x70 cm frame, the professional recommendation is to buy a larger US-standard frame and use a custom mat. A 24x36 inch frame is a common choice. You would then have a mat cut with an outer dimension of 24x36 inches and an inner "window" of approximately 19.4 x 27.3 inches. This slight overlap of the mat (about 1/8th of an inch) ensures the print stays securely behind the mat without falling through the opening.
Option 3: Custom Framing
For high-value art or archival photography, custom framing is the gold standard. A professional framer will measure the 50x70 cm print (which sometimes varies by a millimeter or two depending on the paper type and humidity) and build a frame from scratch. This allows for the selection of UV-protective glass and acid-free mounting boards, which are essential for preserving the longevity of the print.
Common Conversion Comparisons
To help contextualize where 50x70 cm sits among other common international and US sizes, refer to the following table.
| Size in Centimeters | Size in Inches (Rounded) | Common Usage |
|---|---|---|
| 30 x 40 cm | 11.8 x 15.7 in | Small Wall Art / A3 Adjacent |
| 40 x 50 cm | 15.7 x 19.7 in | Standard Medium Portrait |
| 50 x 70 cm | 19.7 x 27.6 in | Standard International Poster |
| 61 x 91 cm | 24.0 x 35.8 in | Large "Movie" Poster Style |
| 70 x 100 cm | 27.6 x 39.4 in | Oversized Exhibition Prints |
Practical Tips for Handling 50x70 cm Art
When working with this specific size, several logistical factors come into play that can affect the final look of your display.
- Paper Weight: Because 50x70 cm is a relatively large surface area, thin paper (under 150 gsm) is prone to "cockling" or waving if the humidity changes. For this size, aim for a paper weight of 200 gsm or higher to ensure the print stays flat within the frame.
- Acrylic vs. Glass: For a 50x70 cm frame, weight becomes a factor. Real glass at this size can be heavy and fragile. Many modern frames in 2026 use high-grade, optical-quality acrylic (Plexiglass). It is lighter, shatter-resistant, and often provides better UV protection than standard window glass.
- Mounting Techniques: Avoid using standard office tape to secure a 50x70 cm print to a backing board. The weight of the paper will eventually cause the tape to fail or the adhesive to stain the print. Use T-hinges made from acid-free linen tape to allow the paper to breathe and hang naturally.
Frequently Asked Questions
Is 50x70 cm the same as 18x24 inches?
No. A 50x70 cm print (19.69 x 27.56 inches) is significantly larger than an 18x24 inch print. Specifically, it is nearly 2 inches wider and over 3.5 inches taller. You cannot fit a 50x70 cm print into an 18x24 inch frame without cutting off a substantial portion of the artwork.
Can I print a 50x70 cm image on an A3 or A4 printer?
Standard home printers (A4 or Letter size) cannot print a 50x70 cm image in one piece. You would need a "Large Format" or "Wide Format" inkjet printer. Most professional print shops use rolls of paper that are 24 inches or 36 inches wide, which easily accommodate the 19.69-inch width of a 50x70 cm print.
What is the 50x70 cm aspect ratio?
The aspect ratio is 5:7 (or 1:1.4). This is the same ratio used for standard 5x7 inch photographs. If you have a photo that looks good as a 5x7, it will scale perfectly to 50x70 cm without any cropping or distortion.
Why is 50x70 cm so popular for posters?
It strikes a balance between visibility and space. It is large enough to be a focal point on a wall (approx. 2 feet wide) but small enough to fit in most modern apartments and rooms without overwhelming the decor. Its ties to IKEA and other international retailers have also made it one of the most affordable "large" sizes to frame.
Will a 50x70 cm print fit in a 20x28 inch frame?
Technically, yes. Since 50x70 cm is 19.69 x 27.56 inches, it will physically fit inside the perimeter of a 20x28 inch frame. However, you will have a small gap of empty space around the edges. You would need a custom mat or a "float mount" technique to make this look intentional and professional.
Summary and Next Actions
Converting 50x70 cm to 19.69 x 27.56 inches is the first step in a successful design or home decor project. Whether you are ordering a custom print from a photographer or buying a frame for a poster you purchased while traveling, remember that the "standard" nature of this size is metric.
Next Steps for Readers:
- Measure twice: If you are buying a frame online, check if the "50x70" refers to the internal window or the external edge of the frame.
- Verify Resolution: Ensure your digital files are at least 3500 pixels on the shortest side before sending them to a print shop for a 50x70 cm output.
- Consider the Mat: If you are in the US and struggling to find a 50x70 cm frame, look for a 24x36 inch frame with a 50x70 cm mat opening—this is often the most aesthetically pleasing way to display art of this size.
By adhering to these conversion standards and technical requirements, you can ensure that your art is displayed accurately and preserved for years to come.
