Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
length of life
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "length of life" is correct and usable in written English.
You can use it to refer to the amount of time someone has been alive or the life span of a particular thing, such as a species. For example, "Research suggests that lifestyle choices can impact the length of life."
✓ Grammatically correct
News & Media
Science
Encyclopedias
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
58 human-written examples
Length of life?
News & Media
In terms of length of life, the UK lags behind other developed nations.
News & Media
So here's my suggestion for improving the quality and length of life in New Jersey.
News & Media
"But with older patients, there's less length of life to protect," Dr. Finlayson pointed out.
News & Media
Others said that what amazed them was that a single gene could so profoundly affect the length of life.
News & Media
The release of data can change the prospects for people's quality of life – their length of life.
News & Media
In the 18th century, when Barnabas Collins and Lestat became vampires, the shape and length of life were different.
News & Media
And yet the definition of "alive" suffered — with quality of life frequently being usurped by length of life.
News & Media
Given the length of life of new water industry investment, we attach greater priority to investment incentives.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
2 human-written examples
Phenology of the plants was studied to evaluate the effect of treatments on length of life-cycle of Linseed.
So what justifies the length of "Life and Times"?
News & Media
Expert writing Tips
Best practice
When discussing healthcare or policy, use "length of life" in conjunction with "quality of life" to provide a balanced perspective. This acknowledges that extending life is not the only important factor; the well-being of the individual also matters.
Common error
Avoid focusing solely on the "length of life" without considering the quality. Interventions aimed at extending life should also address factors that contribute to overall well-being and satisfaction.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "length of life" functions primarily as a noun phrase in English, often acting as the subject or object of a sentence. As Ludwig AI confirms, it's a correct and usable phrase. For instance, it can be used to discuss factors affecting how long someone lives.
Frequent in
Science
39%
News & Media
36%
Encyclopedias
2%
Less common in
Formal & Business
1%
Wiki
1%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "length of life" is a grammatically sound and frequently used noun phrase that effectively quantifies the duration of existence, particularly in discussions related to health, policy, and scientific research. As Ludwig AI confirms, its use is appropriate across various contexts. To ensure a balanced perspective, remember to consider ""quality of life"" alongside "length of life", and be mindful of the potential for misinterpreting data if focusing solely on the duration of life without accounting for the quality of that time. The most authoritative sources, like The New York Times and The Guardian, demonstrate consistent and appropriate use of the phrase.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
life expectancy
Refers to the statistically expected number of years of life remaining at a given age.
life duration
A more formal and direct way to express the "length of life".
years of life
Simple and direct, referring to the total number of years a person lives.
total lifespan
Specifically denotes the entire duration of an organism's life.
lifespan duration
Focuses on the duration aspect of a lifespan, emphasizing the period from birth to death.
survival time
Commonly used in scientific or medical settings to denote the time a subject lives after a specific event or diagnosis.
duration of existence
Highlights the period of being alive or existing, applicable to both living beings and inanimate objects.
time alive
Highlights the duration of being in a living state.
period of survival
Emphasizes the act of surviving for a certain period, often used in medical or challenging contexts.
existence period
More general, referring to the time something exists, not necessarily just living things.
FAQs
What is meant by "length of life" in healthcare?
In healthcare, "length of life" refers to the duration a patient is expected to live, often considered alongside "quality of life" when making treatment decisions.
How does "length of life" relate to life expectancy?
"Length of life" is a general term, while "life expectancy" is a statistical measure representing the average "length of life" for a given population.
What factors influence "length of life"?
Many factors influence "length of life", including genetics, lifestyle choices, access to healthcare, and environmental conditions. Socioeconomic status also plays a significant role.
How is "length of life" measured in scientific studies?
In scientific studies, "length of life" can be measured directly by tracking survival times or estimated using statistical models like "life expectancy" calculations and survival analysis.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested