Birth Year › 1940s

Born in the —? How Old Are You Today?

Quick answer: In —, people born in the 1940s are about — years old (depending on your birth year and whether your birthday has already happened).

As of: —

Use this decade hub to jump to your birth year page (1940–1949). Each year page includes a month-by-month age table, future age table, and an exact age calculator.

Looking for a different decade? Browse the full birth year hub to explore all decades and individual year pages.

Pick your birth year (1940–1949)

Birth year Go to year page
1940 Born in 1940 (age table + calculator)
1941 Born in 1941 (age table + calculator)
1942 Born in 1942 (age table + calculator)
1943 Born in 1943 (age table + calculator)
1944 Born in 1944 (age table + calculator)
1945 Born in 1945 (age table + calculator)
1946 Born in 1946 (age table + calculator)
1947 Born in 1947 (age table + calculator)
1948 Born in 1948 (age table + calculator)
1949 Born in 1949 (age table + calculator)

Prefer an exact answer? Use the age calculator (today) or the age on any date tool.

1940s quick age chart (as of —)

If you were born in the 1940s, your exact age depends on whether your birthday has happened yet. This chart shows the typical age range for each birth year.

Birth year Age in — (range) Turns 30 in Turns 40 in Generation (common) Details

Tip: Click your birth year to see month-by-month ages (years, months, days) and future-year tables.

1940s births: Silent Generation vs Baby Boomer

Depending on the cohort definition, most people born in the 1940s are commonly labeled Silent Generation, while late-1940s births are sometimes labeled early Baby Boomer. If you want a quick rule of thumb that matches the labels used on the year pages:

Generation labels vary by source. This site uses common Pew-style ranges for clarity on the year pages.

1940s Birth Year: FAQs

How old are 1940s babies today?

People born in the 1940s have an age range that depends on the current year and whether their birthday has occurred yet. Use the chart above and click your birth year for exact details.

Why does the age show a range (like 80–81)?

If you only know the birth year, the exact age depends on your birthday. The lower number applies before your birthday in the current year, and the higher number applies after.

What year do 1940s babies turn 80?

Add 80 to your birth year. For example, born in 1940 turns 80 in 2020, and born in 1949 turns 80 in 2029.

How old is someone born in 1945?

Click Born in 1945 for your exact age range today, a month-by-month table, and an exact calculator.

Do you store the dates I enter?

No. Calculations run locally in your browser. No birth dates or personal data are saved or transmitted. Learn more on our privacy page.