Rounding Significant Figures Calculator

Round a number to significant figures. Specify how many significant digits to round a number, decimal, or scientific notation. Rules for rounding numbers to ... BasicCalculator Calculators > Math > RoundingSignificantFiguresCalculator RoundingSignificantFiguresCalculator RoundtoSignificantFigures enternumbersorscientificnotation Round: to SignificantFigures Answer: =3.66 Sendmeyourcomments. SharethisAnswerLink:helpPastethislinkinemail,textorsocialmedia. GetaWidgetforthisCalculator ©Calculator Soup SharethisCalculator&Page CalculatorUse Roundanumbertoaquantityofsignificantfiguresthatyouprovide. Enterwholenumbers,realnumbers,scientificnotationorenotation.Exampleinputsare,3500,35.0056,3.5x10^3and3.5e3. RoundingSignificantFiguresRules Non-zerodigitsarealwayssignificant Zerosbetweennon-zerodigitsarealwayssignificant Leadingzerosareneversignificant Trailingzerosareonlysignificantifthenumbercontainsadecimalpoint ExamplesofSignificantFigures   HowMany SignificantFigures? WhichFigures areSignificant? 81 2 8,1 26.2 3 2,6,2 0.007 1 7 5200.38 6 5,2,0,0,3,8 380.0 4 3,8,0,0 78800 3 7,8,8 78800 4 7,8,8,0 78800. 5 7,8,8,0,0   Inroundingsignificantfigures,whenanintegercontainsmoredigitsthanaresignificant,thelastsignificantdigithasanoverlinetoindicatethatitisthelastsignificantdigit. RoundingRules Whenroundingsignificantfiguresthestandardrulesofroundingnumbersapply,exceptthatnon-significantdigitstotheleftofthedecimalarereplacedwithzeros. Example:356roundedto2significantdigitsis360 Thiscalculatorroundsdownifthenextdigitislessthan5androundsupwhenthenextdigitisgreaterthanorequalto5. Inthetablebelow305.459isroundedfrom0to6significantfigures.Forcomparisonthesamenumberisroundedfrom0to6decimalplaces.Youcanseethedifferencebetweenroundingforsignificantfiguresandroundingtodecimalplaces. RoundingtheNumber305.459 RoundedtoHowMany sfordp? Roundedto SignificantFigures(sf) Roundedto DecimalPlaces(dp) 0 -- 305 1 300 305.5 2 310 305.46 3 305. 305.459 4 305.5 305.4590 5 305.46 305.45900 6 305.459 305.459000   Topracticeidentifyingsignificantfiguresinnumbersseeour SignificantFiguresCounter. Formathwithsignificantfiguresseeour SignificantFiguresCalculator. References Khan,Salman"SignificantFigures," TheKhanAcademy. Weisstein,EricW."SignificantDigits," MathWorld--AWolframWebResource.   Citethiscontent,pageorcalculatoras: Furey,Edward"RoundingSignificantFiguresCalculator"athttps://www.calculatorsoup.com/calculators/math/significant-figures-rounding.phpfromCalculatorSoup, https://www.calculatorsoup.com-OnlineCalculators FollowCalculatorSoup: