Use this calculate my weight on another planet calculator to see how gravitational differences alter your body weight across the solar system, with instant results, intermediate gravity factors, and a dynamic comparison chart.
Planetary Weight Calculator
Enter your actual body weight measured on Earth in kilograms.
Please enter a realistic weight between 1 and 500 kg.
Mercury
Venus
Moon
Mars
Jupiter
Saturn
Uranus
Neptune
Pluto
Select the world where you want to calculate my weight on another planet.
Please choose a valid destination.
Override gravity if you want a custom calculate my weight on another planet scenario. Leave as planet default to auto-fill.
Gravity must be 0 or greater and below 100 m/s².
Primary Result
Weight on Mars: 28.0 kg
Surface gravity used: 3.71 m/s²Earth gravity constant: 9.81 m/s²Gravity ratio: 0.38 x EarthDifference from Earth weight: -47.0 kg
Blue series: Earth weight baseline. Green series: Weight on selected world.
What is calculate my weight on another planet?
calculate my weight on another planet describes the process of translating your Earth weight into the force you would feel on a different world based on its surface gravity. People use calculate my weight on another planet to understand how gravity shapes physical effort, athletic potential, and equipment requirements in space environments.
Fitness enthusiasts, students, engineers, and space investors should use calculate my weight on another planet when modeling astronaut training, spacecraft ergonomics, or tourism experiences. A common misconception is that mass changes with travel, but calculate my weight on another planet keeps mass constant while only the gravitational pull alters perceived weight.
calculate my weight on another planet Formula and Mathematical Explanation
The core formula for calculate my weight on another planet is straightforward: Weight on target world = Earth weight × (target gravity ÷ Earth gravity). Earth gravity is 9.81 m/s². By multiplying your Earth weight by the ratio of surface gravities, calculate my weight on another planet converts familiar scales into destination-specific values.
Step-by-step derivation during calculate my weight on another planet:
Start with your force on Earth: Weight_Earth = Mass × 9.81.
Mass remains constant, so Mass = Weight_Earth ÷ 9.81.
Target weight = Mass × Gravity_target.
Substitute Mass to get Weight_target = Weight_Earth × (Gravity_target ÷ 9.81).
Variable meanings for calculate my weight on another planet
Variable
Meaning
Unit
Typical Range
Weight_Earth
Your measured weight on Earth
kg
1–500
Gravity_target
Surface gravity of chosen world
m/s²
0–30
9.81
Standard Earth gravity constant
m/s²
Fixed
Weight_target
calculate my weight on another planet result
kg
0–1500
Practical Examples (Real-World Use Cases)
Example 1: Athlete training on Mars
Inputs for calculate my weight on another planet: Earth weight 82 kg, planet Mars (gravity 3.71 m/s²). Output: 31.0 kg. Interpretation: Equipment and jump drills would feel roughly 62% lighter, so resistance should be increased for meaningful strength maintenance.
Example 2: Tourist jumping on the Moon
Inputs for calculate my weight on another planet: Earth weight 68 kg, destination Moon (gravity 1.62 m/s²). Output: 11.2 kg. Interpretation: A person can safely carry heavier gear but must manage higher jump heights and slower landings, affecting fall risk and suit design.
How to Use This calculate my weight on another planet Calculator
Enter your Earth weight in kilograms.
Select a planet or moon to calculate my weight on another planet instantly.
Review the gravity ratio and difference from Earth weight.
Use the table to compare common destinations and see updated results.
Copy results to share training plans or mission briefs.
Read results by focusing on the highlighted primary result, then the intermediate gravity ratio and difference values explain how calculate my weight on another planet scales with changing gravity.
Key Factors That Affect calculate my weight on another planet Results
Six drivers shape calculate my weight on another planet outcomes:
Surface gravity variability among worlds changes the ratio.
Local topography and altitude slightly adjust gravity in real missions.
Spacecraft spin gravity in transit can simulate different loads.
Measurement accuracy of your Earth weight impacts precision.
Equipment mass distribution affects perceived load when you calculate my weight on another planet with bulky suits.
Mission duration influences conditioning plans linked to calculate my weight on another planet differences.
Frequently Asked Questions (FAQ)
Does my mass change when I calculate my weight on another planet? No, mass stays constant; only gravitational force changes.
Why use kilograms instead of pounds? Kilograms align with SI units and the formula for calculate my weight on another planet uses m/s².
Can I input zero gravity? Yes, set gravity to 0 to model weightlessness in calculate my weight on another planet.
Is Earth gravity always 9.81? Slightly varies, but 9.81 is standard for calculate my weight on another planet computations.
Can this help design workout plans? Yes, by showing load reductions, calculate my weight on another planet guides resistance settings.
Do gas giants have surfaces? They have strong gravity; calculate my weight on another planet still estimates force at cloud tops.
How accurate are default gravity values? Sourced from average planetary data; adjust with custom gravity for precision.
Does atmospheric pressure matter? Not for calculate my weight on another planet force, but it affects equipment choice.
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var gravityData = {
"Mercury":3.7,
"Venus":8.87,
"Moon":1.62,
"Mars":3.71,
"Jupiter":24.79,
"Saturn":10.44,
"Uranus":8.69,
"Neptune":11.15,
"Pluto":0.62
};
var chartCtx = null;
var chartData = {earth:[], planet:[], labels:[]};
function init() {
buildGravityTable();
initChart();
updateCalculator();
}
function resetCalculator() {
document.getElementById("earthWeight").value = 75;
document.getElementById("planetSelect").value = "Mars";
document.getElementById("customGravity").value = gravityData["Mars"];
hideErrors();
updateCalculator();
}
function hideErrors() {
var ids = ["earthWeightError","planetSelectError","customGravityError"];
for(var i=0;i<ids.length;i++){document.getElementById(ids[i]).style.display="none";}
}
function validateInputs() {
hideErrors();
var valid = true;
var weight = parseFloat(document.getElementById("earthWeight").value);
if(isNaN(weight) || weight500){
document.getElementById("earthWeightError").style.display="block";
valid = false;
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var planet = document.getElementById("planetSelect").value;
if(!gravityData.hasOwnProperty(planet)){
document.getElementById("planetSelectError").style.display="block";
valid = false;
}
var gravity = parseFloat(document.getElementById("customGravity").value);
if(isNaN(gravity) || gravity100){
document.getElementById("customGravityError").style.display="block";
valid = false;
}
return {valid:valid, weight:weight, planet:planet, gravity:gravity};
}
function updateCalculator() {
var check = validateInputs();
if(!check.valid){return;}
var weight = check.weight;
var planet = check.planet;
var gravity = check.gravity;
var defaultGravity = gravityData[planet];
if(document.activeElement.id !== "customGravity"){
document.getElementById("customGravity").value = defaultGravity;
gravity = defaultGravity;
}
var earthG = 9.81;
var ratio = gravity/earthG;
var planetWeight = weight*ratio;
var diff = planetWeight – weight;
updateResults(planet, planetWeight, gravity, earthG, ratio, diff);
updateTable(weight);
updateChart(weight, planetWeight, planet);
}
function updateResults(planet, planetWeight, gravity, earthG, ratio, diff) {
var main = document.getElementById("mainResult");
main.textContent = "Weight on " + planet + ": " + planetWeight.toFixed(1) + " kg";
document.getElementById("intermediate1").textContent = "Surface gravity used: " + gravity.toFixed(2) + " m/s²";
document.getElementById("intermediate2").textContent = "Earth gravity constant: " + earthG.toFixed(2) + " m/s²";
document.getElementById("intermediate3").textContent = "Gravity ratio: " + ratio.toFixed(2) + " x Earth";
document.getElementById("intermediate4").textContent = "Difference from Earth weight: " + diff.toFixed(1) + " kg";
document.getElementById("formulaNote").textContent = "Formula: Weight on planet = Earth weight × (" + gravity.toFixed(2) + " ÷ 9.81).";
}
function buildGravityTable() {
var body = document.getElementById("gravityTableBody");
var keys = Object.keys(gravityData);
var rows = "";
for(var i=0;i<keys.length;i++){
var planet = keys[i];
var g = gravityData[planet];
rows += "
"+planet+"
"+g.toFixed(2)+"
";
}
body.innerHTML = rows;
}
function updateTable(weight) {
var keys = Object.keys(gravityData);
for(var i=0;i<keys.length;i++){
var planet = keys[i];
var g = gravityData[planet];
var ratio = g/9.81;
var w = weight*ratio;
var cell = document.getElementById("table-"+planet);
if(cell){cell.textContent = w.toFixed(1)+" kg";}
}
}
function initChart() {
var canvas = document.getElementById("gravityChart");
chartCtx = canvas.getContext("2d");
}
function updateChart(earthWeight, planetWeight, planet) {
var ctx = chartCtx;
if(!ctx){return;}
var width = ctx.canvas.width;
var height = ctx.canvas.height;
ctx.clearRect(0,0,width,height);
var padding = 50;
var maxVal = Math.max(earthWeight, planetWeight)*1.2;
if(maxVal < 10){maxVal = 10;}
drawAxes(ctx,width,height,padding,maxVal);
drawBars(ctx,width,height,padding,maxVal,earthWeight,planetWeight,planet);
}
function drawAxes(ctx,width,height,padding,maxVal) {
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ctx.lineWidth = 1;
ctx.beginPath();
ctx.moveTo(padding,padding/2);
ctx.lineTo(padding,height-padding);
ctx.lineTo(width-padding,height-padding);
ctx.stroke();
var steps = 5;
ctx.fillStyle="#6c757d";
ctx.font="12px Arial";
for(var i=0;i<=steps;i++){
var val = maxVal/steps*i;
var y = height – padding – (height – 1.5*padding)/maxVal*val;
ctx.beginPath();
ctx.moveTo(padding-5,y);
ctx.lineTo(padding,y);
ctx.stroke();
ctx.fillText(val.toFixed(0)+" kg",5,y+4);
}
}
function drawBars(ctx,width,height,padding,maxVal,earthWeight,planetWeight,planet) {
var barWidth = 120;
var gap = 80;
var startX = padding + 40;
var earthBarHeight = (height – 1.5*padding)/maxVal*earthWeight;
var planetBarHeight = (height – 1.5*padding)/maxVal*planetWeight;
ctx.fillStyle = "#004a99";
ctx.fillRect(startX,height-padding-earthBarHeight,barWidth,earthBarHeight);
ctx.fillStyle = "#28a745";
ctx.fillRect(startX+barWidth+gap,height-padding-planetBarHeight,barWidth,planetBarHeight);
ctx.fillStyle="#004a99";
ctx.font="13px Arial";
ctx.fillText("Earth weight",startX,height-padding+16);
ctx.fillStyle="#28a745";
ctx.fillText(planet+" weight",startX+barWidth+gap,height-padding+16);
ctx.fillStyle="#fff";
ctx.font="12px Arial";
ctx.fillText(earthWeight.toFixed(1),startX+barWidth/3,height-padding-earthBarHeight+14);
ctx.fillText(planetWeight.toFixed(1),startX+barWidth+gap+barWidth/3,height-padding-planetBarHeight+14);
}
function copyResults() {
var text = "";
text += document.getElementById("mainResult").textContent + "\n";
text += document.getElementById("intermediate1").textContent + "\n";
text += document.getElementById("intermediate2").textContent + "\n";
text += document.getElementById("intermediate3").textContent + "\n";
text += document.getElementById("intermediate4").textContent + "\n";
text += "Assumption: Mass constant, Earth gravity 9.81 m/s².";
var temp = document.createElement("textarea");
temp.value = text;
document.body.appendChild(temp);
temp.select();
document.execCommand("copy");
document.body.removeChild(temp);
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window.onload = init;