What does estimating mean?
"Estimating" is the present participle and gerund of the verb "estimate," meaning to form an approximate judgment or calculation of something's value, size, cost, quantity, or extent. It describes the practical, everyday act of arriving at a figure that is close enough to be useful without being exact — whether a contractor estimating building costs, a scientist estimating a population's size, or a driver estimating travel time. The word carries no strong connotation of either precision or carelessness; it simply signals that a figure is provisional. Because so much of planning and decision-making rests on figures that cannot be known precisely, estimating is one of the most frequently used verbs in professional and everyday life alike. It derives ultimately from the Latin aestimare, meaning to value or appraise — the same root that gives us "esteem."
Forming an approximate calculation or judgment of the value, number, quantity, or extent of something.
"Astronomers are estimating the galaxy's age at over twelve billion years."
The activity or practice of making approximate calculations or judgments.
"Accurate estimating is the most valued skill on any construction project."
Every budget you've ever seen started life as an educated guess — that's estimating doing its quiet, indispensable work.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of estimating
The verb "estimate" entered English in the 16th century, borrowed from the Latin aestimare (also written estimare), meaning to value, appraise, or fix the price of something. It came into English largely through earlier French forms such as estimer. The same Latin root produced "esteem," which originally carried the sense of fixing a value before narrowing to mean respect or high regard, as well as "estimation" and "estimable." "Estimating" is simply the regular present participle and gerund of this verb.
Related word forms
How estimating is actually used
"Estimating" is neutral in register and common in both everyday speech and technical contexts such as construction, finance, and statistics. In careful usage, an estimate is understood to be approximate; when precision matters, writers often prefer "calculating" or "measuring." The gerund form functions as a noun ("Estimating takes experience"), while the participle modifies nouns ("the estimating process").
Easily confused with estimating
"Estimation" is the noun denoting the act or result of judging value or an approximate calculation, while "estimating" is the verb form describing the ongoing action itself.
"Esteeming" means valuing or respecting someone or something highly, whereas "estimating" means roughly calculating a quantity or value.