Significant Figures Calculator and Counter

How to count significant figures · Any digit that is not 0 is always significant · 0 is significant when it's between other digits, such as 205 or 3.604 (because ... www.sigfigscalculator.com Feedback Rules AddtoPhone SignificantFiguresCalculator Ifyoufindthiscalculatoruseful,pleaseconsidersharingit. Roundtosignificantfigures: 1 2 3 4 5 Solvesexpressionsandcountsthenumberofsignificantfigures. Doesnotapplytheevenrule. Additionandsubtractionroundbyleastnumberofdecimals. Multiplicationanddivisionroundbyleastnumberofsignificantfigures. Logarithmroundsbytheinput'snumberofsignificantfiguresastheresult'snumberofdecimals. Antilogarithmroundsbythepower'snumberofdecimalsastheresult'snumberofsignificantfigures. Exponentiationroundsbythecertaintyinonlythebase. Roundsonthefinalstep. SitestatisticsgatheredbyGoogleAnalytics. Showmore Showpreviousresults Scrolluptoform Likethiscalculator?Pleaseshare Pleasehelpusspreadthewordbysharingthiswithfriendsoronyourwebsiteorblog.Thankyou. Link Onthispage: Whataresignificantfigures? Sigfigscalculatoroperators Howmanysignificantfiguresaretherein...? Howtocountsignificantfigures Whataresignificantfigures? Significantfigures,orsigfigsforshort,arethemeaningfuldigitsinanumber.Often,leadingzeroesortrailingzeroescanberemovedandthenumberremainsjustasaccurate(004meansthesameas4,forexample).When removingdigits,youmustbeabletoidentifythesignificantfiguresinordertoretainthenumber’saccuracy.Whenyouroundanumberupordown,oneorsomeofthesignificantfiguresarealtered. Sigfigscalculatoroperators Youcanusethefollowingoperatorsandfunctionswiththiscalculator: Addition(+),subtraction(-),division(/or÷)andmultiplication(*or×).Plusexponent(^) Groupingsymbols:parentheses() Functions:log,ln Ourcalculatoralsoprovidesacounter,showingyouthenumberofsignificantfiguresforanycalculation. Howmanysignificantfiguresaretherein...? Herearesomeexamplesofsignificantfigurecalculations: 7has1significantfigure(7). 73has2significantfigures(7and3). 100has1significantfigure(1). 673has3significantfigures(6,7and3). 673.52has5significantfigures(6,3,7,5and2). 0.0637has3significantfigures(6,3and7). 30.00has4significantfigures(3,0,0and0)and2decimals. 0.0025has2significantfigures(2and5)and4decimals. Howtocountsignificantfigures Herearetherulesyouneedtoknowforidentifyingsignificantfigures. Allofthefollowingaresignificantfigures… Anydigitthatisnot0isalwayssignificant 0issignificantwhenit’sbetweenotherdigits,suchas205or3.604(becauseclearly,205isnotthesameas25) Ifthere’sadecimalpoint,thenanytrailingzeroesaresignificantfigures(e.g.90.7500).Thesetrailingzeroesmightseemunnecessaryatfirstglance, buttheyconfirmtheprecisionofthenumber.90.75couldwellbe90.7511roundeddowntotwodecimalplaces.So90.7500confirmsthatitiscompletelyexacttofourdecimalplaces. Andthesearenotsignificantfigures… Leadingzeroesbeforeanon-zerodigitarenotsignificantfigures(00200isthesameas200,and007isthesameas7,sotheleading0sarenotsignificant.Theydon’tmakethenumberanymoreprecise).

 Thisprinciplecanbeconfusing,butleadingzerosarestillnotsignificantfigures,eveniftheycomeafteradecimalpoint.0.01kgofgrapesarenotthesameas1kgofgrapes,sotheleadingzeroesmightseemtobe significant.However,0.01kgcanalsobeexpressedas10g.It’sthesamevalue.Soleadingzeroesarenotconsideredtobesignificantfigures;it’sthe1partthat’ssignificant.Ofcourse,ifthezerositsbetweentwo significantfigures(e.g.2.303)thenthezeroissignificant,inlinewithrule(2)explainedabove. Trailingzeroesarenotsignificantwhenthere’snodecimalpointinvolved.Ifthereisadecimalpoint,then,accordingtorule(3)explainedabove,anytrailingzeroesareconsideredtobesignificantfigures. Youcanlearnmoreabouthowtocalculateandcountsignificantfiguresinourarticleabouttherulesforsignificantfigures. Otherusefulcalculators CheckoutthemathcalculatorsatTheCalculatorSiteforassistancewith convertingdecimalstofractions.Forthoseofyouatuniversitywantinghelpwithcalculatingyourmodule, assignmentorcoursegrades,givetheuniversitygradecalculatoratry. |disclaimer|privacypolicy|contact| ThiscalculatorwasoriginallydevelopedbyQuentinTruong,andexpandedbytheteamatTheCalculatorSite. HazellIndustriesLtd,12StationStreet,Eastbourne, EastSussex,BN214RG ©HazellIndustriesLtd-2021   xx