[Solved]-How to set max and min value for Y axis-Chart.js

yes you can set it to min and max range

options: {
            resposive: true,
            title: {
                display: true
            },
            hover: {
                mode: 'index',
                intersect: true
            },
            scales: {
                y: {
                    suggestedMin: 0,
                    suggestedMax: 500
                }
            }
        }

Since none of the suggestions above helped me with charts.js 2.1.4, I solved it by adding the value 0 to my data set array (but no extra label):

statsData.push(0);

[...]

var myChart = new Chart(ctx, {
    type: 'horizontalBar',
    data: {
        datasets: [{
            data: statsData,
[...]

With 1.1.1, I used the following to fix the scale between 0.0 and 1.0:

var options = {
    scaleOverride: true,
    scaleStartValue: 0,
    scaleSteps: 10,
    scaleStepWidth: 0.1
}

v3.X (v3.5.0)

Linear Cartesian Axis

let options = {
  scales: {
    y: {
      beginAtZero: true,
      suggestedMax: 69
    },
    x: {
      beginAtZero: true,
      suggestedMax: 420
    },
    ticks: {
      stepSize: 1
    }
  }
}

Ref. https://www.chartjs.org/docs/3.5.0/axes/cartesian/linear.html

Linear Radial Axes

let options = {
  scales: {
    r: {
      beginAtZero: true,
      suggestedMax: 5,
      ticks: {
        stepSize: 1
      }
    }
  }
}

Ref. https://www.chartjs.org/docs/3.5.0/axes/radial/linear.html

v2.X (v2.9.4)

Linear Cartesian Axis

let options = {
    scale: {
      ticks: {
        beginAtZero: true,
        stepSize: 1,
        suggestedMax: 5,
      }
    }
}

Ref. https://www.chartjs.org/docs/2.9.4/axes/cartesian/linear.html

Linear Radial Axes

let options = {
  scale: {
    ticks: {
      beginAtZero: true,
      stepSize: 1,
      suggestedMax: 5,
    }
  }
}

Ref. https://www.chartjs.org/docs/2.9.4/axes/radial/linear.html

Note: scale in singular in v2 and plural in v3

There's so many conflicting answers to this, most of which had no effect for me.

I was finally able to set (or retrieve current) X-axis minimum & maximum displayed values with chart.options.scales.xAxes[0].ticks.min (even if min & max are only a subset of the data assigned to the chart.)

Using a time scale in my case, I used:

chart.options.scales.xAxes[0].ticks.min = 1590969600000;  //Jun 1, 2020
chart.options.scales.xAxes[0].ticks.max = 1593561600000;  //Jul 1, 2020
chart.update();

(I found no need to set the step values or beginAtZero, etc.)

This is for Charts.js 2.0:

The reason some of these are not working is because you should declare your options when you create your chart like so:

$(function () {
    var ctxLine = document.getElementById("myLineChart");
    var myLineChart = new Chart(ctxLine, {
        type: 'line',
        data: dataLine,
        options: {
            scales: {
                yAxes: [{
                    ticks: {
                        min: 0,
                        beginAtZero: true
                    }
                }]
            }
        }

    });
})

Documentation for this is here: http://www.chartjs.org/docs/#scales

In my case, I used a callback in yaxis ticks, my values are in percent and when it reaches 100% it doesn't show the dot, I used this :

      yAxes: [{
                   ticks: {
                       beginAtZero: true,
                       steps: 10,
                       stepValue: 5,
                       min: 0,
                       max: 100.1,
                       callback: function(value, index, values) {
                           if (value !== 100.1) {
                               return values[index]
                           }
                       }
                   }
               }],

And it worked well.

Just set the value for scaleStartValue in your options.

var options = {
   // ....
   scaleStartValue: 0,
}

See the documentation for this here.

yAxes: [{
    display: true,
    ticks: {
        beginAtZero: true,
        steps:10,
        stepValue:5,
        max:100
    }
}]

> Best Solution

  "options":{
                    scales: {
                                yAxes: [{
                                    display: true,
                                    ticks: {
                                        suggestedMin: 0, //min
                                        suggestedMax: 100 //max 
                                    }
                                }]
                            }
                    }

For "chart.js": "^3.6.1",

options: {          
    scales: {
        y: {
            min: 0,
            max: 100,
        }
    }
}

For Chart.js v3.2.0, do this:

let options = {
    scales: {
        y: {
            suggestedMin: 0,
            suggestedMax: 69
        },
        x: {
            suggestedMin: 0,
            suggestedMax: 420
        }
    }
}

Documentation: https://www.chartjs.org/docs/latest/axes/#axis-range-settings

The above answers didn't work for me. Possibly the option names were changed since '11, but the following did the trick for me:

ChartJsProvider.setOptions
  scaleBeginAtZero: true

window.onload = function(){
var ctx = document.getElementById("canvas").getContext("2d");
window.myLine = new Chart(ctx ,{
          type: 'line',
          data: yourData,
          options: {
            scales: {
                yAxes: [{
                    ticks: {
                        beginAtZero:true,
                        min: 0,
                        max: 500    
                    }
                  }]
               }
            }
});

I configure with 'options' in v2.

You should read documentation: http://www.chartjs.org/docs/#scales-linear-scale

I wrote a js to display values from 0 to 100 in y-axis with a gap of 20.

This is my script.js

//x-axis
var vehicles = ["Trucks", "Cars", "Bikes", "Jeeps"];

//The percentage of vehicles of each type
var percentage = [41, 76, 29, 50];

var ctx = document.getElementById("barChart");
var lineChart = new Chart(ctx, {
  type: 'bar',
  data: {
    labels: vehicles,
    datasets: [{
      data: percentage,
      label: "Percentage of vehicles",
      backgroundColor: "#3e95cd",
      fill: false
    }]
  },
  options: {
    scales: {
      yAxes: [{
        ticks: {
          beginAtZero: true,
          min: 0,
          max: 100,
          stepSize: 20,
        }
      }]
    }
  }
});

This is the graph displayed on the web.

ChartJS v2.4.0

As shown in the examples at https://github.com/jtblin/angular-chart.js on the 7th of febuary 2017 (since this seems to be subject to frequent change):

var options = {
    yAxes: [{
        ticks: {
            min: 0,
            max: 100,
            stepSize: 20
        }
    }]
}

This will result in 5 y-axis values as such:

100
80
60
40
20
0

As of Feb 2022, this works. Here is how one can change it

var options = {
    scales: {
        yAxes: [{
            display: true,
            stacked: true,
            ticks: {
                min: 0, // minimum value
                max: 10 // maximum value
            }
        }]
    }
};

For chart.js V2 (beta), use:

var options = {
    scales: {
        yAxes: [{
            display: true,
            ticks: {
                suggestedMin: 0,    // minimum will be 0, unless there is a lower value.
                // OR //
                beginAtZero: true   // minimum value will be 0.
            }
        }]
    }
};

See chart.js documentation on linear axes configuration for more details.