US dollar bill
US dollar bill measures 156.0mm × 66.3mm. It weighs about 1.0g.
Dimensions
| Length | 156.0 mm |
|---|---|
| Width | 66.3 mm |
| Weight | 1.0 g |
US dollar bill
A US dollar bill measures 6.14 inches (156 mm) long and 2.61 inches (66 mm) wide, regardless of denomination. This uniform size across all US paper currency, from the $1 bill to the $100 bill, is a distinctive feature of the US monetary system compared to many other countries that vary bill size by denomination. This page covers the exact dimensions, thickness, and how it compares to other everyday objects.
- Dimensions
- Thickness and weight
- Why all denominations are the same size
- US currency vs other paper sizes
- Frequently asked questions
- What is the exact size of a US dollar bill?
- Are all US bills the same size?
- How thick is a dollar bill?
- How much does a dollar bill weigh?
- Why doesn't a dollar bill fit in a card slot?
- Related objects
Dimensions
| Measurement | Inches | Millimeters |
|---|---|---|
| Length | 6.14 | 156 |
| Width | 2.61 | 66 |
Thickness and weight
A single dollar bill is about 0.0043 inches (0.11 mm) thick and weighs approximately 1 gram. A stack of 100 bills measures close to 0.43 inches (11 mm) thick, a detail often used informally to estimate cash stack sizes.
Why all denominations are the same size
Unlike currencies such as the euro, which uses different sizes for different denominations, every US bill from $1 to $100 shares identical dimensions. This uniformity simplifies manufacturing, ATM design, and wallet compatibility, though it means US bills rely entirely on color-coded ink, portraits, and other design elements to distinguish denominations, since size offers no visual cue.
US currency vs other paper sizes
| Item | Length (in) | Width (in) |
|---|---|---|
| US dollar bill | 6.14 | 2.61 |
| Business card (US) | 3.5 | 2.0 |
| Credit card | 3.37 | 2.13 |
A dollar bill is noticeably longer than a standard business card or credit card, which is why it does not fit standard card holder slots designed for ID-1 format cards. Wallets are typically designed with a separate, longer compartment specifically to fit the length of paper currency.
Frequently asked questions
What is the exact size of a US dollar bill?
6.14 x 2.61 inches (156 x 66 mm), the same size across all denominations from $1 to $100.
Are all US bills the same size?
Yes. Every denomination of US paper currency, from $1 to $100, shares identical physical dimensions, unlike many other countries that size bills by denomination.
How thick is a dollar bill?
About 0.0043 inches (0.11 mm). A stack of 100 bills measures roughly 0.43 inches (11 mm) thick.
How much does a dollar bill weigh?
Approximately 1 gram, regardless of denomination, since all US bills use the same paper stock and printing process.
Why doesn’t a dollar bill fit in a card slot?
A dollar bill (6.14 x 2.61 inches) is significantly longer than the ID-1 card format (3.37 x 2.13 inches) used for credit cards, so wallet card slots are too short to hold currency properly.
Related objects
Similar in Size
Frequently Asked Questions
How long is a US dollar bill?
A US dollar bill is 156.0mm (15.6cm) long.
How much does a US dollar bill weigh?
A US dollar bill weighs about 1.0g.