guesstimated
Ballparked the figure
Guesstimated is the past tense of guesstimate, meaning to estimate based partly on calculation and partly on guesswork.
The blend of guess and estimate suggests rougher math than a proper estimate: I guesstimated we'd need about forty chairs for the party.
The word is informal and often slightly self-deprecating.
Calculated without precision
- ballparkedEstimated loosely
- estimatedRoughly calculated beforehand
- figuredComputed or understood
- reckonedCalculated or supposed
projected · speculated · conjectured · surmised · gauged · assessed · judged · extrapolated
Estimated loosely
- spitballedSuggested without preparation
- eyeballedEstimated visually
- back-of-envelopeInformal preliminary calculation
- off-the-cuffUnplanned, unrehearsed
seat-of-pants · winging-it · improvised · ad-libbed · fudged · handwaved · quick-and-dirty · thumbnail
approximated
Calculated without precision
- ballparkedEstimated loosely
- estimatedRoughly calculated beforehand
- figuredComputed or understood
reckoned · projected · speculated · conjectured · surmised · gauged · assessed · judged · extrapolated · inferred
ballparked
Estimated loosely
- spitballedSuggested without preparation
- eyeballedEstimated visually
- back-of-envelopeInformal preliminary calculation
off-the-cuff · seat-of-pants · winging-it · improvised · ad-libbed · fudged · handwaved · quick-and-dirty · thumbnail · rule-of-thumb
calculated
Figured out mathematically
tallied · computed · figured · projected · forecasted · budgeted · costed · priced · valued · assessed
- approximationsabout, approximately, around, roughly, almost
guesstimatedverified
Confirmed as accurate
confirmed · audited · calibrated · tabulated
guesstimatedproven
Established as fact
verified · established · certain · factual · confirmed
guesstimatedcalculated
Figured out mathematically
measured · computed · quantified · determined · tallied