Mortgage CalculatorLoan CalculatorAuto Loan CalculatorCompound Interest CalculatorSimple Interest CalculatorSavings CalculatorRetirement CalculatorROI CalculatorCAGR CalculatorPresent Value CalculatorFuture Value CalculatorAnnuity CalculatorAPR CalculatorCredit Card Payoff CalculatorDebt-to-Income Ratio CalculatorIncome Tax Calculator (US Federal)Salary to Hourly Wage CalculatorTip CalculatorDiscount CalculatorSales Tax CalculatorProfit Margin CalculatorMarkup CalculatorBreak-Even CalculatorInflation CalculatorSavings Goal CalculatorExchange Rate CalculatorPercentage CalculatorPercentage Change CalculatorFraction CalculatorAverage CalculatorMean, Median & Mode CalculatorStandard Deviation CalculatorRatio CalculatorProportion CalculatorExponent CalculatorLogarithm CalculatorSquare Root CalculatorFactorial CalculatorGCD & LCM CalculatorPythagorean Theorem CalculatorQuadratic Equation CalculatorSlope CalculatorArea CalculatorPerimeter CalculatorVolume CalculatorCircle CalculatorTriangle CalculatorRandom Number Range AnalyzerScientific Notation CalculatorRounding CalculatorBMI CalculatorBMR CalculatorTDEE CalculatorCalorie CalculatorBody Fat CalculatorIdeal Weight CalculatorMacro CalculatorProtein CalculatorWater Intake CalculatorOvulation CalculatorPregnancy Due Date CalculatorConception CalculatorPeriod CalculatorPace CalculatorHeart Rate Zones CalculatorVO2 Max CalculatorOne Rep Max CalculatorSleep CalculatorBlood Alcohol Calculator (BAC)Lean Body Mass CalculatorCalories Burned CalculatorPregnancy Weight Gain CalculatorAge CalculatorDate Duration CalculatorDays Between Dates CalculatorAdd Days to Date CalculatorBusiness Days CalculatorWork Hours CalculatorTime Duration CalculatorTime Zone ConverterWeek Number CalculatorDay of Week CalculatorLeap Year CalculatorUnix Timestamp ConverterTime Add / Subtract CalculatorDays Until CalculatorZodiac Sign CalculatorChinese Zodiac CalculatorRetirement Date CalculatorQuarter CalculatorLength ConverterWeight ConverterTemperature ConverterVolume ConverterArea ConverterSpeed ConverterTime ConverterData Storage ConverterPressure ConverterEnergy ConverterPower ConverterForce ConverterTorque ConverterAngle ConverterFuel Consumption ConverterCooking ConverterShoe Size ConverterDensity ConverterFrequency ConverterHeight ConverterFlow Rate ConverterNumber to Words ConverterRoman Numeral ConverterBeaufort Scale ConverterScreen Size CalculatorDecibel ConverterConcrete CalculatorTile CalculatorPaint CalculatorFlooring CalculatorDrywall CalculatorBrick CalculatorGravel CalculatorMulch CalculatorDeck CalculatorFence CalculatorRoof Pitch CalculatorRoofing Material CalculatorStairs CalculatorSquare Footage CalculatorCubic Yard CalculatorBoard Feet CalculatorInsulation CalculatorWallpaper CalculatorOhm's Law CalculatorParallel Resistor CalculatorVelocity CalculatorAcceleration CalculatorKinetic Energy CalculatorPotential Energy CalculatorForce CalculatorMomentum CalculatorFriction CalculatorProjectile Range CalculatorPendulum CalculatorWavelength CalculatorpH CalculatorMolarity CalculatorDilution CalculatorIdeal Gas CalculatorBoyle's Law CalculatorHalf-Life CalculatorGPA CalculatorGrade CalculatorFinal Grade CalculatorWeighted Grade CalculatorDog Age CalculatorCat Age CalculatorElectricity Cost CalculatorFuel Cost CalculatorSplit Bill CalculatorUnit Price CalculatorReading Time CalculatorSubnet CalculatorDownload Time CalculatorProbability CalculatorRent Affordability CalculatorSolar Payback CalculatorHousehold Budget CalculatorEmergency Fund Calculator

Density Converter

Convert kg/m³, g/cm³, g/mL, lb/ft³ and lb per US gallon.

By CalcHub Editorial · Last reviewed

Quick answer

  • Formula: Result = Value × (factor of from-unit in kg/m³) ÷ (factor of to-unit in kg/m³)
  • Worked example — Converted density: 1,000.000000 (full example below).

Density Converter

Worked example result
Converted density1,000.000000
Summary1 g/cm³ = 1000 kg/m³

1 g/cm³ is exactly 1000 kg/m³ — the density of water, and the reason the two unit systems convert so cleanly.

Diagram: how the Density Converter works — you enter Density, From, To; it applies the formula Result = Value × (factor of from-unit in kg/m³) ÷ (factor of to-uni…; and the worked example gives Converted density: 1,000.000000.
How the Density Converter works — the inputs, the formula, and a worked example (Converted density: 1,000.000000).

Convert density through kilograms per cubic metre. The metric units line up neatly: 1 g/cm³ = exactly 1000 kg/m³, and g/mL is the same thing (water at 4 °C is 1.000 g/cm³). The imperial units: 1 lb/ft³ = 16.0184634 kg/m³ and 1 lb per US gallon = 119.826 kg/m³.

Reference points: water 1000 kg/m³, ice 917, aluminium 2700, steel about 7850, gold 19,300 — dense enough that a gold brick weighs roughly 12.4 kg.

The formula

Result = Value × (factor of from-unit in kg/m³) ÷ (factor of to-unit in kg/m³)

Worked example

1 g/cm³ is exactly 1000 kg/m³ — the density of water, and the reason the two unit systems convert so cleanly.

Worked example for the Density Converter: with Density 1, From Grams per cubic centimetre (g/cm³), To Kilograms per cubic metre (kg/m³), the result is Converted density: 1,000.000000; Summary: 1 g/cm³ = 1000 kg/m³.
The worked example, with the example values entered and the results they give.

The example is pre-loaded in the result panel — press Calculate with your own numbers to replace it.

Frequently asked questions

What is the density of water in lb/ft³?

About 62.43 lb/ft³ (1000 kg/m³ ÷ 16.0184634). Engineers often round to 62.4.

Are g/cm³ and g/mL different?

No — since 1 cm³ is exactly 1 mL, the values are identical. Labs use g/mL for liquids and g/cm³ for solids, but the number never changes.

How do I get specific gravity from density?

Divide the density in kg/m³ by 1000 (or read g/cm³ directly) — specific gravity is density relative to water, so the g/cm³ value is the specific gravity.

Category: Unit Conversions calculators

Sources & methodology

This calculator applies the formula shown on this page exactly as written, using the standard definitions for its inputs. Results are computed from the values you enter — no data is stored — and are rounded only for display.

Content last reviewed by CalcHub Editorial.

Embed this calculator on your site

Free to use with attribution — paste the snippet below and the calculator appears on your page, with a link back to CalcHub.

<iframe src="https://calc-hub-63e.pages.dev/embed/density-converter" width="100%" height="640" style="border:1px solid #d9e2ea;border-radius:12px" loading="lazy" title="Density Converter — CalcHub"></iframe>

Open the embed version →

Weight Converter — how-it-works diagram

Weight Converter

Convert mg, grams, kilograms, tonnes, ounces, pounds, stone and US tons.

Unit Conversions →
Volume Converter — how-it-works diagram

Volume Converter

Convert litres, ml, cubic metres, US and imperial gallons, cups, tablespoons and teaspoons.

Unit Conversions →
Cubic Yard Calculator — how-it-works diagram

Cubic Yard Calculator

Convert length × width × depth into cubic yards, cubic feet and cubic meters.

Construction & Home →
Gravel Calculator — how-it-works diagram

Gravel Calculator

Cubic yards and tons of gravel for a driveway, path or drainage bed.

Construction & Home →