Creating a simple unit converter using text input , react hooks and typescript

I want the converter to show results at real time for each input text field . Strictly need to use the react hooks and typescript for my react-native app

    function GradConverter(){
  const [temp, updateTemp] = React.useState({ f: 0, c: 0 })

  const updateC = ev => updateTemp({
    c: ev.target.value,
    f: (+ev.target.value * 9 / 5 + 32).toFixed(2)
  })

  const updateF = ev => updateTemp({
    c: ((+ev.target.value - 32) * 5 / 9).toFixed(2),
    f: ev.target.value
  })

  return(
    <div id="container">
      <div id="box1">
        <h1>Celsius</h1>
        <input
            type = "number"
            value = {temp.c}
            onChange = {updateC} >
          </input>
      </div>
      <div id="box2">
          <h1>Fahrenheit</h1>
          <input
            type = "number" 
            value = {temp.f} 
            onChange = {updateF}>
          </input>
          </div>
    </div>
  )
}

I want to convert this particular example to react native app using typescript and react hooks