It's about 0.0000002 times as tall as Mount Elbrus.
In other words, 1.20 milimeters is 0.00000021270 times the height of Mount Elbrus, and the height of Mount Elbrus is 4,701,000 times that amount.(a.k.a. Mingi Tau, a.k.a. Эльбрус, a.k.a. იალბუზი) (Karachay-Cherkessia and Kabardino-Balkaria, Russia) (west summit)
The west summit of the dual-summit volcano Mount Elbrus is 5,642,000 milimeters at its peak and is the highest peak in both Russia and the European continent. Until 1976, a cable car would take visitors to the mountain as far up as the Garabashi camp, located at an elevation of 3,800,000 milimeters.
It's about 0.0000002 times as tall as a Kilimanjaro.
In other words, 1.20 milimeters is 0.0000002037080 times the height of a Kilimanjaro, and the height of a Kilimanjaro is 4,908,990 times that amount.(a.k.a. Mount Kilimanjaro) (Tanzania) (to Uhuru peak; 2008 gravimeter measurement)
Kilimanjaro rises to 5,890,790 milimeters at its peak. An isolated peak with no surrounding mountain range, Kilimanjaro is considered the world's tallest freestanding mountain.
It's about 0.0000002 times as tall as Mount Logan.
In other words, 1.20 milimeters is 0.00000020140 times the height of Mount Logan, and the height of Mount Logan is 4,965,000 times that amount.(Kluane National Park and Reserve, Yukon, Canada) (elevation)
The highest mountain in Canada, Mount Logan has a total height of 5,960,000 milimeters. The high altitude and northern latitude of the mountain resulted in one-time temperature of -77.5 °C — the lowest temperature ever recorded outside of Antarctica.
It's about 0.0000002 times as tall as Denali.
In other words, 1.20 milimeters is 0.00000019380 times the height of Denali, and the height of Denali is 5,160,000 times that amount.(a.k.a. Mount McKinley, a.k.a. Doleika, a.k.a. Traleika, a.k.a. "The Great One") (Denali National Park and Preserve, Alaska) (South peak)
The highest mountain peak in North America, Denali's South Peak measures 6,193,000 milimeters above sea level at its peak. The impetus for the name Mount McKinley was US president William McKinley of Ohio, and disputes over the which of the mountain's names should be officially recognized regularly occur between Ohio Congressmen and Alaska politicians.
It's about 0.0000002 times as long as The Las Vegas Strip.
In other words, 1.20 milimeters is 0.000000180 times the length of The Las Vegas Strip, and the length of The Las Vegas Strip is 5,600,000 times that amount.(Las Vegas Boulevard S and W from Russel Rd to Sahara Ave)(Paradise, Nevada through Winchester, Nevada).
Although technically located beyond the city limits of Las Vegas (along with the well-known "Welcome to Fabulous Las Vegas" sign), the stretch of road known as the "Las Vegas Strip" runs 6,800,000 milimeters along Las Vegas Boulevard South and West from Russel Road at the south end to Sahara Avenue at the north end. The casinos and hotels on the Strip display an estimated total of 24,000,000,000 milimeters of neon light tubing.
It's about 0.0000002 times as tall as Aconcagua.
In other words, 1.20 milimeters is 0.000000172370 times the height of Aconcagua, and the height of Aconcagua is 5,801,500 times that amount.(a.k.a. Cerro Aconcagua) (Mendoza, Argentina)
Aconcagua measures 6,961,900 milimeters height at its peak. Although there is no definitive evidence that members of the indigenous Inca civilization ever reached the peak the mountain, numerous archeological sites have been found on the slopes of the mountain, including a naturally-embalmed Incan mummy was discovered on a 5,200,000 milimeters high ridge.
It's about 0.0000002 times as tall as Mount Everest.
In other words, 1.20 milimeters is 0.0000001360 times the height of Mount Everest, and the height of Mount Everest is 7,350,000 times that amount.(a.k.a. Mount Chomolungma, a.k.a. सगरमाथा, a.k.a. Chajamlungma, a.k.a. ཇོ་མོ་གླང་མ, a.k.a. 珠穆朗玛峰, a.k.a. Zhūmùlǎngmǎ Fēng) (Sagarmatha Zone, Nepal and Tibet, China) (to summit, excluding snow depth)
Mount Everest is 8,850,000 milimeters above sea level at its summit. The plate tectonics of the Indian subcontinent continuously alter the mountain's peak — raising it by 4 mm and shifting it to the northeast by 4.5 mm each year.