[Latest] How old is Interstate

Living Person

Interstate_40
is

As of April 20, 2026

68 years old
8 months!

Days Until Birthday

115 days

Days Since Birth

25,086 days
elapsed

Date of Birth

(August 14born, 1957 ) is

Wed
Day

Rooster
Year

* Calculated from Wikipedia data.
Accuracy is not guaranteed.

Cosmic Age Calculator

Moon

918.2 years old

Mercury

285.2 years old

Venus

111.6 years old

Mars

36.5 years old

Jupiter

5.8 years old

Saturn

2.3 years old

* Calculated based on each planet's orbital period.

Interstate 40

Route information
Length	2,556.61 mi (4,114.46 km)
Existed	August 14, 1957–present
NHS	Entire route
Major junctions
West end	I-15 in Barstow, CA
Major intersections	I-17 in Flagstaff, AZ I-25 in Albuquerque, NM I-27 in Amarillo, TX I-35 in Oklahoma City, OK I-30 in North Little Rock, AR I-55 in West Memphis, AR I-24 / I-65 in Nashville, TN I-75 from Farragut to Knoxville, TN I-85 from Greensboro to Hillsborough, NC I-95 in Benson, NC
East end	US 117 in Wilmington, NC

Location
Country	United States
States	California, Arizona, New Mexico, Texas, Oklahoma, Arkansas, Tennessee, North Carolina

Highway system
Interstate Highway System Main Auxiliary Suffixed Business Future

Wikipedia Categories

Interstate 40

U.S. Route 66

CS1: unfit URL

All accuracy disputes

Interstate Highway System

Accuracy disputes from February 2017

Infobox road instances in the United States

Look up "Interstate_40" on Wikipedia