[{"data":1,"prerenderedAt":606},["ShallowReactive",2],{"catalog":3,"page:\u002Fpool-and-aquarium\u002Faquarium-volume-calculator":224},[4,37,58,91,112,143,170,197],{"path":5,"stem":6,"title":7,"short":8,"icon":9,"order":10,"calculators":11},"\u002Fwoodworking","woodworking\u002Findex","Woodworking Calculators","Board feet, deck boards, tape measure fractions and inch decimals.","i-lucide-hammer",1,[12,19,25,31],{"path":13,"stem":14,"title":15,"short":16,"icon":17,"hub":18},"\u002Fwoodworking\u002Fboard-foot-calculator","woodworking\u002Fboard-foot-calculator","Board Foot Calculator","Board feet, cost and waste for a list of boards, hardwood or softwood.","i-lucide-ruler-dimension-line","woodworking",{"path":20,"stem":21,"title":22,"short":23,"icon":24,"hub":18},"\u002Fwoodworking\u002Fdeck-board-calculator","woodworking\u002Fdeck-board-calculator","Deck Board Calculator","Deck boards, linear feet, joists and screws for any deck size.","i-lucide-rows-3",{"path":26,"stem":27,"title":28,"short":29,"icon":30,"hub":18},"\u002Fwoodworking\u002Ffraction-to-decimal-chart","woodworking\u002Ffraction-to-decimal-chart","Fraction to Decimal Chart (Inches)","Every 64th of an inch as a decimal and in mm, with a two-way converter.","i-lucide-decimals-arrow-right",{"path":32,"stem":33,"title":34,"short":35,"icon":36,"hub":18},"\u002Fwoodworking\u002Fhow-to-read-a-tape-measure","woodworking\u002Fhow-to-read-a-tape-measure","How to Read a Tape Measure","Tap any mark on an interactive tape to see its fraction, decimal and mm.","i-lucide-pencil-ruler",{"path":38,"stem":39,"title":40,"short":41,"icon":42,"order":43,"calculators":44},"\u002Fresin-and-candles","resin-and-candles\u002Findex","Resin & Candle Making Calculators","Epoxy volumes and mix ratios, candle wax and fragrance oil.","i-lucide-flask-conical",2,[45,52],{"path":46,"stem":47,"title":48,"short":49,"icon":50,"hub":51},"\u002Fresin-and-candles\u002Fcandle-wax-calculator","resin-and-candles\u002Fcandle-wax-calculator","Candle Wax Calculator","Wax and fragrance oil by weight for any jar size and batch.","i-lucide-flame","resin-and-candles",{"path":53,"stem":54,"title":55,"short":56,"icon":57,"hub":51},"\u002Fresin-and-candles\u002Fepoxy-resin-calculator","resin-and-candles\u002Fepoxy-resin-calculator","Epoxy Resin Calculator","Resin for molds, river tables and tabletop coats, split into A and B.","i-lucide-droplets",{"path":59,"stem":60,"title":61,"short":62,"icon":63,"order":64,"calculators":65},"\u002Fquilting","quilting\u002Findex","Quilting Calculators","Backing, binding, half-square triangles and quilt sizes.","i-lucide-grid-3x3",3,[66,73,79,85],{"path":67,"stem":68,"title":69,"short":70,"icon":71,"hub":72},"\u002Fquilting\u002Fhalf-square-triangle-calculator","quilting\u002Fhalf-square-triangle-calculator","Half Square Triangle Calculator","Cutting sizes and square counts for 2-, 4- and 8-at-a-time HSTs.","i-lucide-triangle-right","quilting",{"path":74,"stem":75,"title":76,"short":77,"icon":78,"hub":72},"\u002Fquilting\u002Fquilt-backing-calculator","quilting\u002Fquilt-backing-calculator","Quilt Backing Calculator","Yardage, panels and seam direction for any quilt back.","i-lucide-layers",{"path":80,"stem":81,"title":82,"short":83,"icon":84,"hub":72},"\u002Fquilting\u002Fquilt-binding-calculator","quilting\u002Fquilt-binding-calculator","Quilt Binding Calculator","Strips to cut and fabric to buy for double-fold binding.","i-lucide-frame",{"path":86,"stem":87,"title":88,"short":89,"icon":90,"hub":72},"\u002Fquilting\u002Fquilt-size-calculator","quilting\u002Fquilt-size-calculator","Quilt Size Calculator","Finished size from blocks and borders, or the right size for your bed.","i-lucide-bed-double",{"path":92,"stem":93,"title":94,"short":95,"icon":96,"order":97,"calculators":98},"\u002Fsewing-and-needlework","sewing-and-needlework\u002Findex","Sewing & Needlework Calculators","Fabric yardage, cutting plans and cross stitch fabric sizes.","i-lucide-scissors",4,[99,106],{"path":100,"stem":101,"title":102,"short":103,"icon":104,"hub":105},"\u002Fsewing-and-needlework\u002Fcross-stitch-fabric-calculator","sewing-and-needlework\u002Fcross-stitch-fabric-calculator","Cross Stitch Fabric Calculator","Finished design size and fabric to cut for any Aida or linen count.","i-lucide-grid-2x2-x","sewing-and-needlework",{"path":107,"stem":108,"title":109,"short":110,"icon":111,"hub":105},"\u002Fsewing-and-needlework\u002Ffabric-yardage-calculator","sewing-and-needlework\u002Ffabric-yardage-calculator","Fabric Yardage Calculator","Yards and meters to buy for any set of pieces, with a cutting plan.","i-lucide-ruler",{"path":113,"stem":114,"title":115,"short":116,"icon":117,"order":118,"calculators":119},"\u002Fknitting-and-crochet","knitting-and-crochet\u002Findex","Knitting & Crochet Calculators","Yarn yardage, gauge and cast-on counts, and blanket sizes.","i-lucide-spool",5,[120,126,132,137],{"path":121,"stem":122,"title":123,"short":124,"icon":90,"hub":125},"\u002Fknitting-and-crochet\u002Fcrochet-blanket-size-calculator","knitting-and-crochet\u002Fcrochet-blanket-size-calculator","Crochet Blanket Size Calculator","Blanket size chart plus the starting chain and rows at your gauge.","knitting-and-crochet",{"path":127,"stem":128,"title":129,"short":130,"icon":131,"hub":125},"\u002Fknitting-and-crochet\u002Fcrochet-hook-size-chart","knitting-and-crochet\u002Fcrochet-hook-size-chart","Crochet Hook Size Chart","US letters, millimeters and UK sizes for every hook, plus the yarn each suits.","i-lucide-fishing-hook",{"path":133,"stem":134,"title":135,"short":136,"icon":111,"hub":125},"\u002Fknitting-and-crochet\u002Fknitting-gauge-calculator","knitting-and-crochet\u002Fknitting-gauge-calculator","Knitting Gauge Calculator","Cast-on stitches and rows from your gauge, or rescale a pattern.",{"path":138,"stem":139,"title":140,"short":141,"icon":142,"hub":125},"\u002Fknitting-and-crochet\u002Fyarn-calculator","knitting-and-crochet\u002Fyarn-calculator","Yarn Calculator","Yards, meters and skeins for any project, worked out from your swatch.","i-lucide-scale",{"path":144,"stem":145,"title":146,"short":147,"icon":148,"order":149,"calculators":150},"\u002Fpool-and-aquarium","pool-and-aquarium\u002Findex","Pool & Aquarium Calculators","Pool gallons, aquarium volume and fish stocking.","i-lucide-waves",6,[151,158,164],{"path":152,"stem":153,"title":154,"short":155,"icon":156,"hub":157},"\u002Fpool-and-aquarium\u002Faquarium-volume-calculator","pool-and-aquarium\u002Faquarium-volume-calculator","Aquarium Volume Calculator","Gallons, liters and weight for rectangle, bow front, cylinder and hex tanks.","i-lucide-container","pool-and-aquarium",{"path":159,"stem":160,"title":161,"short":162,"icon":163,"hub":157},"\u002Fpool-and-aquarium\u002Ffish-tank-stocking-calculator","pool-and-aquarium\u002Ffish-tank-stocking-calculator","Fish Tank Stocking Calculator","Check your fish list against the inch-per-gallon and surface-area rules.","i-lucide-fish",{"path":165,"stem":166,"title":167,"short":168,"icon":169,"hub":157},"\u002Fpool-and-aquarium\u002Fpool-volume-calculator","pool-and-aquarium\u002Fpool-volume-calculator","Pool Volume Calculator","Gallons and liters for round, oval, rectangle and kidney pools.","i-lucide-waves-ladder",{"path":171,"stem":172,"title":173,"short":174,"icon":175,"order":176,"calculators":177},"\u002Fgarden","garden\u002Findex","Garden Calculators","Companion plants, raised bed soil and square foot garden plans.","i-lucide-leaf",7,[178,185,191],{"path":179,"stem":180,"title":181,"short":182,"icon":183,"hub":184},"\u002Fgarden\u002Fcompanion-planting-chart","garden\u002Fcompanion-planting-chart","Companion Planting Chart","Good and bad neighbors for 30 vegetables, herbs and flowers.","i-lucide-sprout","garden",{"path":186,"stem":187,"title":188,"short":189,"icon":190,"hub":184},"\u002Fgarden\u002Fraised-bed-soil-calculator","garden\u002Fraised-bed-soil-calculator","Raised Bed Soil Calculator","Soil for any raised bed in cubic feet, cubic yards and bags.","i-lucide-shovel",{"path":192,"stem":193,"title":194,"short":195,"icon":196,"hub":184},"\u002Fgarden\u002Fsquare-foot-garden-planner","garden\u002Fsquare-foot-garden-planner","Square Foot Garden Planner","Plan a square foot garden square by square and count the plants.","i-lucide-layout-grid",{"path":198,"stem":199,"title":200,"short":201,"icon":202,"order":203,"calculators":204},"\u002Fpets","pets\u002Findex","Pet & Backyard Animal Calculators","Cat and dog ages in human years, and chicken coop space.","i-lucide-paw-print",8,[205,212,218],{"path":206,"stem":207,"title":208,"short":209,"icon":210,"hub":211},"\u002Fpets\u002Fcat-age-calculator","pets\u002Fcat-age-calculator","Cat Age Calculator","Cat years to human years, plus your cat's life stage.","i-lucide-cat","pets",{"path":213,"stem":214,"title":215,"short":216,"icon":217,"hub":211},"\u002Fpets\u002Fchicken-coop-size-calculator","pets\u002Fchicken-coop-size-calculator","Chicken Coop Size Calculator","Coop floor, run, roosts, nest boxes and vents for your flock.","i-lucide-egg",{"path":219,"stem":220,"title":221,"short":222,"icon":223,"hub":211},"\u002Fpets\u002Fdog-age-calculator","pets\u002Fdog-age-calculator","Dog Age Calculator","Dog years to human years by size, plus the epigenetic formula.","i-lucide-dog",{"kind":225,"calculator":226},"calculator",{"id":227,"title":154,"body":228,"calculator":573,"description":574,"extension":575,"faq":576,"hub":157,"icon":156,"keyword":595,"meta":596,"navigation":597,"path":152,"related":598,"seo":602,"seoTitle":603,"short":155,"stem":153,"updated":604,"__hash__":605},"calculators\u002Fpool-and-aquarium\u002Faquarium-volume-calculator.md",{"type":229,"value":230,"toc":566},"minimark",[231,236,240,269,272,276,279,444,447,450,499,503,506,533,536,540],[232,233,235],"h2",{"id":234},"how-to-calculate-aquarium-volume","How to calculate aquarium volume",[237,238,239],"p",{},"Measure inside the glass, in inches, and multiply the floor area by the height. A US gallon is 231 cubic inches, so:",[241,242,243,251,257,263],"ul",{},[244,245,246,250],"li",{},[247,248,249],"strong",{},"Rectangle:"," length × width × height ÷ 231.",[244,252,253,256],{},[247,254,255],{},"Cylinder:"," π ÷ 4 × diameter² × height ÷ 231.",[244,258,259,262],{},[247,260,261],{},"Bow front:"," (length × end depth + ⅔ × length × bulge) × height ÷ 231, where the bulge is the depth at the middle of the bow minus the depth at the ends. This treats the bow as a smooth curve. Real bows differ slightly, so take the answer as close rather than exact.",[244,264,265,268],{},[247,266,267],{},"Hexagon:"," for a regular hexagon, 2.598 × side² × height ÷ 231, where the side is the inside width of one glass panel.",[237,270,271],{},"In centimeters, the same products divided by 1,000 give liters.",[232,273,275],{"id":274},"standard-aquarium-sizes-chart","Standard aquarium sizes chart",[237,277,278],{},"Common US glass tanks and their usual outside dimensions. The volumes are computed from those dimensions, so they come out a little above what the tank really holds. Dimensions differ slightly between brands, so measure yours.",[280,281,282,304],"table",{},[283,284,285],"thead",{},[286,287,288,292,295,298,301],"tr",{},[289,290,291],"th",{},"Tank",[289,293,294],{},"Common size (L × W × H)",[289,296,297],{},"Computed volume",[289,299,300],{},"Liters",[289,302,303],{},"Rough set-up weight",[305,306,307,325,342,359,376,393,410,427],"tbody",{},[286,308,309,313,316,319,322],{},[310,311,312],"td",{},"10 gallon",[310,314,315],{},"20 × 10 × 12 in",[310,317,318],{},"10.4 gal",[310,320,321],{},"39 L",[310,323,324],{},"104 lb",[286,326,327,330,333,336,339],{},[310,328,329],{},"20 high",[310,331,332],{},"24 × 12 × 16 in",[310,334,335],{},"19.9 gal",[310,337,338],{},"76 L",[310,340,341],{},"199 lb",[286,343,344,347,350,353,356],{},[310,345,346],{},"20 long",[310,348,349],{},"30 × 12 × 12 in",[310,351,352],{},"18.7 gal",[310,354,355],{},"71 L",[310,357,358],{},"187 lb",[286,360,361,364,367,370,373],{},[310,362,363],{},"29 gallon",[310,365,366],{},"30 × 12 × 18 in",[310,368,369],{},"28.1 gal",[310,371,372],{},"106 L",[310,374,375],{},"281 lb",[286,377,378,381,384,387,390],{},[310,379,380],{},"40 breeder",[310,382,383],{},"36 × 18 × 16 in",[310,385,386],{},"44.9 gal",[310,388,389],{},"170 L",[310,391,392],{},"449 lb",[286,394,395,398,401,404,407],{},[310,396,397],{},"55 gallon",[310,399,400],{},"48 × 13 × 21 in",[310,402,403],{},"56.7 gal",[310,405,406],{},"215 L",[310,408,409],{},"567 lb",[286,411,412,415,418,421,424],{},[310,413,414],{},"75 gallon",[310,416,417],{},"48 × 18 × 21 in",[310,419,420],{},"78.5 gal",[310,422,423],{},"297 L",[310,425,426],{},"785 lb",[286,428,429,432,435,438,441],{},[310,430,431],{},"125 gallon",[310,433,434],{},"72 × 18 × 21 in",[310,436,437],{},"117.8 gal",[310,439,440],{},"446 L",[310,442,443],{},"1,178 lb",[237,445,446],{},"The weight column uses the rule of thumb of about 10 pounds per gallon of tank size for water, glass, substrate and decor. It is an estimate, not a rating; check what your stand and floor are built for.",[237,448,449],{},"Other shapes, using inside measurements:",[280,451,452,464],{},[283,453,454],{},[286,455,456,458,461],{},[289,457,291],{},[289,459,460],{},"Measurements",[289,462,463],{},"Volume",[305,465,466,477,488],{},[286,467,468,471,474],{},[310,469,470],{},"Bow front",[310,472,473],{},"36 in along the back, 12 in deep at the ends, 15 in at the middle, 20 in tall",[310,475,476],{},"43.6 gal (165 L)",[286,478,479,482,485],{},[310,480,481],{},"Cylinder",[310,483,484],{},"12 in diameter, 24 in tall",[310,486,487],{},"11.8 gal (44 L)",[286,489,490,493,496],{},[310,491,492],{},"Hexagon",[310,494,495],{},"10 in panels, 20 in tall",[310,497,498],{},"22.5 gal (85 L)",[232,500,502],{"id":501},"example-how-much-water-is-really-in-a-55","Example: how much water is really in a 55",[237,504,505],{},"A 55-gallon tank measures about 48 × 13 × 21 inches outside. Inside the glass it is closer to 47.5 × 12.5 inches, and the water stands 20 inches deep with the lid on.",[507,508,509,512,519,526],"ol",{},[244,510,511],{},"Volume of the water space: 47.5 × 12.5 × 20 = 11,875 cubic inches.",[244,513,514,515,518],{},"Gallons: 11,875 ÷ 231 = ",[247,516,517],{},"51.4 gallons"," (194.6 liters).",[244,520,521,522,525],{},"Two inches of gravel and some rock take about 15 percent: 51.4 × 0.85 = ",[247,523,524],{},"43.7 gallons of water"," (165 liters).",[244,527,528,529,532],{},"That water weighs 43.7 × 8.34 = ",[247,530,531],{},"about 364 pounds",".",[237,534,535],{},"So a \"55\" really holds about 44 gallons of water once it is set up. Use the lower figure for water changes and medication doses; follow the medication's label for the dose itself.",[232,537,539],{"id":538},"tips","Tips",[241,541,542,548,554,560],{},[244,543,544,547],{},[247,545,546],{},"Measure inside, at the water line."," Outside dimensions include the glass and the frame.",[244,549,550,553],{},[247,551,552],{},"Dose by real water volume."," Medications and fertilizers are dosed per gallon, so use the corrected figure and follow the product's label.",[244,555,556,559],{},[247,557,558],{},"Weight adds up fast."," Use a stand made for the tank's size, and set large tanks near a load-bearing wall, across the floor joists rather than between them. If you are unsure about the floor, ask a builder.",[244,561,562,565],{},[247,563,564],{},"Check level before you fill."," A tank that is out of level puts uneven stress on the seams and shows in the water line.",{"title":567,"searchDepth":43,"depth":43,"links":568},"",[569,570,571,572],{"id":234,"depth":43,"text":235},{"id":274,"depth":43,"text":275},{"id":501,"depth":43,"text":502},{"id":538,"depth":43,"text":539},"AquariumVolumeCalculator","Find how many gallons your fish tank holds, for rectangle, cylinder, bow front and hexagon tanks, with real water volume after substrate and filled weight.","md",[577,580,583,586,589,592],{"q":578,"a":579},"How do you calculate how many gallons a fish tank holds?","Multiply length × width × height in inches and divide by 231, the number of cubic inches in a US gallon. A 30 × 12 × 18 inch tank is 6,480 cubic inches, or about 28.1 gallons. In centimeters, multiply the three and divide by 1,000 for liters.",{"q":581,"a":582},"How much does a 55-gallon aquarium weigh when full?","The water alone weighs about 460 pounds (55 × 8.34). A common rule of thumb for the whole set-up, with glass, gravel and decor, is about 10 pounds per gallon of tank size, so plan for roughly 550 pounds, and more with a lot of rock.",{"q":584,"a":585},"What is the difference between a 20 long and a 20 high tank?","A 20 long is usually 30 × 12 × 12 inches and a 20 high 24 × 12 × 16 inches. They hold about the same water, but the long tank has more floor and surface area (360 against 288 square inches), which suits active swimmers, bottom dwellers and the surface-area stocking rule.",{"q":587,"a":588},"Why does my tank hold less water than its label says?","Labels are nominal and usually based on outside dimensions. The glass takes up some room, you fill to an inch or so below the rim, and substrate, rock and wood push water out. Allowing 10 to 20 percent less is common; the calculator lets you set the figure.",{"q":590,"a":591},"How many liters are in a gallon?","A US gallon is 3.785 liters. A UK (imperial) gallon is 4.546 liters, about 1.2 US gallons, so tank sizes in British sources look smaller in gallons than the same tank sold in the US.",{"q":593,"a":594},"How do I measure a bow front aquarium?","Measure the length along the straight back, the front-to-back depth at the ends, and the depth at the middle of the bow, all inside the glass. The calculator treats the bow as a smooth curve and adds two thirds of the bulge times the length to the rectangle.","aquarium volume calculator",{},true,[599,600,601],"fish-tank-stocking-calculator","pool-volume-calculator","epoxy-resin-calculator",{"title":154,"description":574},"Aquarium Volume Calculator – Gallons, Liters & Weight","2026-10-17","gRQfmlaRgwJEeVDKGIVtnIQ--1MHsUYDSG789KiCr3g",1792193315212]