10 Square Kilometers | The Measure Of Things

  About Contact Developers Help Press Mentions Inquiries Guidance Privacy Cookies Design and text copyright © 2026.All rights reserved.   How big is 10 square kilometers? It's about 35,000,000,000 times as big as a US Penny The size of a US Penny is about 0.0000000002850 square kilometers. (United States one-cent coin) (a.k.a. Lincoln penny, a.k.a. Cent, a.k.a. One cent piece) The Lincoln penny, in its current design since 1909, has a diameter of 19.05 mm (0.75 in) and an area of 0.0000000002850 square kilometers. Hide Details – Permalink – Mistakes? – Source – Citations – http://www.usmint.gov/about_the_mint/?action=coin_specifications  MLA Style (8th Ed.)"10 square kilometers" The Measure of Things, 2026, www.themeasureofthings.com/results.php?comp=area&unit=km2&amt=10&sort=pr&p=10. Accessed 17 Mar 2026. APA Style (7th Ed.)The Measure of Things. (2026). 10 square kilometers. Retrieved March 17, 2026 from www.themeasureofthings.com/results.php?comp=area&unit=km2&amt=10&sort=pr&p=10 Chicago Style (17th Ed.)"10 square kilometers." The Measure of Things. 2026. https://www.themeasureofthings.com/results.php?comp=area&unit=km2&amt=10&sort=pr&p=10.  Hide Details Permalink Mistakes? expand_lessSource http://www.usmint.gov/about_the_mint/?action=coin_specifications  expand_lessCitations expand_lessAPA Style (7th Ed.) The Measure of Things. (2026). 10 square kilometers. Retrieved March 17, 2026 from www.themeasureofthings.com/results.php?comp=area&unit=km2&amt=10&sort=pr&p=10 expand_lessMLA Style (8th Ed.) "10 square kilometers" The Measure of Things, 2026, www.themeasureofthings.com/results.php?comp=area&unit=km2&amt=10&sort=pr&p=10. Accessed 17 Mar 2026. expand_lessChicago Style (17th Ed.) "10 square kilometers." The Measure of Things. 2026. https://www.themeasureofthings.com/results.php?comp=area&unit=km2&amt=10&sort=pr&p=10.   It's about 40,000,000,000 times as big as a US Dime The size of a US Dime is about 0.00000000025190 square kilometers. (United States ten-cent coin) (a.k.a. Roosevelt dime) The dime, in its current design since 1946, has a diameter of 17.91 mm (0.705 in) and an area of 0.00000000025190 square kilometers. Hide Details – Permalink – Mistakes? – Source – Citations – http://www.usmint.gov/about_the_mint/?action=coin_specifications  MLA Style (8th Ed.)"10 square kilometers" The Measure of Things, 2026, www.themeasureofthings.com/results.php?comp=area&unit=km2&amt=10&sort=pr&p=10. Accessed 17 Mar 2026. APA Style (7th Ed.)The Measure of Things. (2026). 10 square kilometers. Retrieved March 17, 2026 from www.themeasureofthings.com/results.php?comp=area&unit=km2&amt=10&sort=pr&p=10 Chicago Style (17th Ed.)"10 square kilometers." The Measure of Things. 2026. https://www.themeasureofthings.com/results.php?comp=area&unit=km2&amt=10&sort=pr&p=10.  Hide Details Permalink Mistakes? expand_lessSource http://www.usmint.gov/about_the_mint/?action=coin_specifications  expand_lessCitations expand_lessAPA Style (7th Ed.) The Measure of Things. (2026). 10 square kilometers. Retrieved March 17, 2026 from www.themeasureofthings.com/results.php?comp=area&unit=km2&amt=10&sort=pr&p=10 expand_lessMLA Style (8th Ed.) "10 square kilometers" The Measure of Things, 2026, www.themeasureofthings.com/results.php?comp=area&unit=km2&amt=10&sort=pr&p=10. Accessed 17 Mar 2026. expand_lessChicago Style (17th Ed.) "10 square kilometers." The Measure of Things. 2026. https://www.themeasureofthings.com/results.php?comp=area&unit=km2&amt=10&sort=pr&p=10.   It's about 150,000,000,000 times as big as a Nailhead The size of a Nailhead is about 0.000000000077740 square kilometers. (for 11-gauge wire nai) An 11-gauge nailhead measures 0.000000000077740 square kilometers. Nails have been used since ancient times; archaeologists have discovered Ancient Egyptian nails that are over 5,000 years old. Hide Details – Permalink – Mistakes? – Source – Citations – http://www.mazenails.com/resources/nail-info  MLA Style (8th Ed.)"10 square kilometers" The Measure of Things, 2026, www.themeasureofthings.com/results.php?comp=area&unit=km2&amt=10&sort=pr&p=10. Accessed 17 Mar 2026. APA Style (7th Ed.)The Measure of Things. (2026). 10 square kilometers. Retrieved March 17, 2026 from www.themeasureofthings.com/results.php?comp=area&unit=km2&amt=10&sort=pr&p=10 Chicago Style (17th Ed.)"10 square kilometers." The Measure of Things. 2026. https://www.themeasureofthings.com/results.php?comp=area&unit=km2&amt=10&sort=pr&p=10.  Hide Details Permalink Mistakes? expand_lessSource http://www.mazenails.com/resources/nail-info  expand_lessCitations expand_lessAPA Style (7th Ed.) The Measure of Things. (2026). 10 square kilometers. Retrieved March 17, 2026 from www.themeasureofthings.com/results.php?comp=area&unit=km2&amt=10&sort=pr&p=10 expand_lessMLA Style (8th Ed.) "10 square kilometers" The Measure of Things, 2026, www.themeasureofthings.com/results.php?comp=area&unit=km2&amt=10&sort=pr&p=10. Accessed 17 Mar 2026. expand_lessChicago Style (17th Ed.) "10 square kilometers." The Measure of Things. 2026. https://www.themeasureofthings.com/results.php?comp=area&unit=km2&amt=10&sort=pr&p=10.   It's about 15,000,000,000,000 times as big as a Ballpoint Pen Tip The size of a Ballpoint Pen Tip is about 0.000000000000700 square kilometers. (a.k.a. Biro, a.k.a. ball pen, a.k.a. dot pen) (for medium tip) The most common size of ballpoint pen — a medium-tip — measures 0.000000000000700 square kilometers. A typical ballpoint pen can write more than 8,500 m (28,000 ft) before running out of ink. Hide Details – Permalink – Mistakes? – Source – Citations – https://www.mitrax.com.au/pen-refill-types-and-sizes.html  MLA Style (8th Ed.)"10 square kilometers" The Measure of Things, 2026, www.themeasureofthings.com/results.php?comp=area&unit=km2&amt=10&sort=pr&p=10. Accessed 17 Mar 2026. APA Style (7th Ed.)The Measure of Things. (2026). 10 square kilometers. Retrieved March 17, 2026 from www.themeasureofthings.com/results.php?comp=area&unit=km2&amt=10&sort=pr&p=10 Chicago Style (17th Ed.)"10 square kilometers." The Measure of Things. 2026. https://www.themeasureofthings.com/results.php?comp=area&unit=km2&amt=10&sort=pr&p=10.  Hide Details Permalink Mistakes? expand_lessSource https://www.mitrax.com.au/pen-refill-types-and-sizes.html  expand_lessCitations expand_lessAPA Style (7th Ed.) The Measure of Things. (2026). 10 square kilometers. Retrieved March 17, 2026 from www.themeasureofthings.com/results.php?comp=area&unit=km2&amt=10&sort=pr&p=10 expand_lessMLA Style (8th Ed.) "10 square kilometers" The Measure of Things, 2026, www.themeasureofthings.com/results.php?comp=area&unit=km2&amt=10&sort=pr&p=10. Accessed 17 Mar 2026. expand_lessChicago Style (17th Ed.) "10 square kilometers." The Measure of Things. 2026. https://www.themeasureofthings.com/results.php?comp=area&unit=km2&amt=10&sort=pr&p=10.   << < More Results The Measure of Things – The Count of Things About – Contact – Developers – Help – Press – Privacy – Cookie Preferences Design and Text Copyright © 2026. All rights reserved.