diff --git a/package-lock.json b/package-lock.json
index 2b410fb..e1968c6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,8 @@
       "version": "0.1.0",
       "dependencies": {
         "core-js": "^3.8.3",
-        "vue": "^3.2.13"
+        "vue": "^3.2.13",
+        "vue-router": "^4.0.14"
       },
       "devDependencies": {
         "@babel/core": "^7.12.16",
@@ -2798,6 +2799,11 @@
       "integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI=",
       "dev": true
     },
+    "node_modules/@vue/devtools-api": {
+      "version": "6.1.4",
+      "resolved": "https://registry.npmjs.org/@vue/devtools-api/-/devtools-api-6.1.4.tgz",
+      "integrity": "sha512-IiA0SvDrJEgXvVxjNkHPFfDx6SXw0b/TUkqMcDZWNg9fnCAHbTpoo59YfJ9QLFkwa3raau5vSlRVzMSLDnfdtQ=="
+    },
     "node_modules/@vue/reactivity": {
       "version": "3.2.32",
       "resolved": "https://registry.npmjs.org/@vue/reactivity/-/reactivity-3.2.32.tgz",
@@ -10487,6 +10493,20 @@
         "node": ">=8"
       }
     },
+    "node_modules/vue-router": {
+      "version": "4.0.14",
+      "resolved": "https://registry.npmjs.org/vue-router/-/vue-router-4.0.14.tgz",
+      "integrity": "sha512-wAO6zF9zxA3u+7AkMPqw9LjoUCjSxfFvINQj3E/DceTt6uEz1XZLraDhdg2EYmvVwTBSGlLYsUw8bDmx0754Mw==",
+      "dependencies": {
+        "@vue/devtools-api": "^6.0.0"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/posva"
+      },
+      "peerDependencies": {
+        "vue": "^3.2.0"
+      }
+    },
     "node_modules/vue-style-loader": {
       "version": "4.1.3",
       "resolved": "https://registry.npmjs.org/vue-style-loader/-/vue-style-loader-4.1.3.tgz",
@@ -13038,7 +13058,8 @@
       "version": "5.0.4",
       "resolved": "https://registry.npmjs.org/@vue/cli-plugin-vuex/-/cli-plugin-vuex-5.0.4.tgz",
       "integrity": "sha512-dBwiD6mT9+V2HTHcwaWE8qFNgTk5I/NUvxYVeUN3Mmmpo4y/1RxXnr7BlKGnaQsTypb2RFk3KowqIJtg7s+E3Q==",
-      "dev": true
+      "dev": true,
+      "requires": {}
     },
     "@vue/cli-service": {
       "version": "5.0.4",
@@ -13306,6 +13327,11 @@
         }
       }
     },
+    "@vue/devtools-api": {
+      "version": "6.1.4",
+      "resolved": "https://registry.npmjs.org/@vue/devtools-api/-/devtools-api-6.1.4.tgz",
+      "integrity": "sha512-IiA0SvDrJEgXvVxjNkHPFfDx6SXw0b/TUkqMcDZWNg9fnCAHbTpoo59YfJ9QLFkwa3raau5vSlRVzMSLDnfdtQ=="
+    },
     "@vue/reactivity": {
       "version": "3.2.32",
       "resolved": "https://registry.npmjs.org/@vue/reactivity/-/reactivity-3.2.32.tgz",
@@ -13564,13 +13590,15 @@
       "version": "1.8.0",
       "resolved": "https://registry.npmjs.org/acorn-import-assertions/-/acorn-import-assertions-1.8.0.tgz",
       "integrity": "sha512-m7VZ3jwz4eK6A4Vtt8Ew1/mNbP24u0FhdyfA7fSvnJR6LMdfOYnmuIrrJAgrYfYJ10F/otaHTtrtrtmHdMNzEw==",
-      "dev": true
+      "dev": true,
+      "requires": {}
     },
     "acorn-jsx": {
       "version": "5.3.2",
       "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-5.3.2.tgz",
       "integrity": "sha512-rq9s+JNhf0IChjtDXxllJ7g41oZk5SlXtp0LHwyA5cejwn7vKmKp4pPri6YEePv2PU65sAsegbXtIinmDFDXgQ==",
-      "dev": true
+      "dev": true,
+      "requires": {}
     },
     "acorn-walk": {
       "version": "8.2.0",
@@ -13629,7 +13657,8 @@
       "version": "3.5.2",
       "resolved": "https://registry.npmjs.org/ajv-keywords/-/ajv-keywords-3.5.2.tgz",
       "integrity": "sha512-5p6WTN0DdTGVQk6VjcEju19IgaHudalcfabD7yhDGeA6bcQnmL+CpveLJq/3hvfwd1aof6L386Ougkx6RfyMIQ==",
-      "dev": true
+      "dev": true,
+      "requires": {}
     },
     "ansi-colors": {
       "version": "4.1.1",
@@ -14453,7 +14482,8 @@
       "version": "6.2.2",
       "resolved": "https://registry.npmjs.org/css-declaration-sorter/-/css-declaration-sorter-6.2.2.tgz",
       "integrity": "sha512-Ufadglr88ZLsrvS11gjeu/40Lw74D9Am/Jpr3LlYm5Q4ZP5KdlUhG+6u2EjyXeZcxmZ2h1ebCKngDjolpeLHpg==",
-      "dev": true
+      "dev": true,
+      "requires": {}
     },
     "css-loader": {
       "version": "6.7.1",
@@ -14638,7 +14668,8 @@
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/cssnano-utils/-/cssnano-utils-3.1.0.tgz",
       "integrity": "sha512-JQNR19/YZhz4psLX/rQ9M83e3z2Wf/HdJbryzte4a3NSuafyp9w/I4U+hx5C2S9g41qlstH7DEWnZaaj83OuEA==",
-      "dev": true
+      "dev": true,
+      "requires": {}
     },
     "csso": {
       "version": "4.2.0",
@@ -16027,7 +16058,8 @@
       "version": "5.1.0",
       "resolved": "https://registry.npmjs.org/icss-utils/-/icss-utils-5.1.0.tgz",
       "integrity": "sha512-soFhflCVWLfRNOPU3iv5Z9VUdT44xFRbzjLsEzSr5AQmgqPMTHdU3PMT1Cf1ssx8fLNJDA1juftYl+PUcv3MqA==",
-      "dev": true
+      "dev": true,
+      "requires": {}
     },
     "ieee754": {
       "version": "1.2.1",
@@ -17395,25 +17427,29 @@
       "version": "5.1.1",
       "resolved": "https://registry.npmjs.org/postcss-discard-comments/-/postcss-discard-comments-5.1.1.tgz",
       "integrity": "sha512-5JscyFmvkUxz/5/+TB3QTTT9Gi9jHkcn8dcmmuN68JQcv3aQg4y88yEHHhwFB52l/NkaJ43O0dbksGMAo49nfQ==",
-      "dev": true
+      "dev": true,
+      "requires": {}
     },
     "postcss-discard-duplicates": {
       "version": "5.1.0",
       "resolved": "https://registry.npmjs.org/postcss-discard-duplicates/-/postcss-discard-duplicates-5.1.0.tgz",
       "integrity": "sha512-zmX3IoSI2aoenxHV6C7plngHWWhUOV3sP1T8y2ifzxzbtnuhk1EdPwm0S1bIUNaJ2eNbWeGLEwzw8huPD67aQw==",
-      "dev": true
+      "dev": true,
+      "requires": {}
     },
     "postcss-discard-empty": {
       "version": "5.1.1",
       "resolved": "https://registry.npmjs.org/postcss-discard-empty/-/postcss-discard-empty-5.1.1.tgz",
       "integrity": "sha512-zPz4WljiSuLWsI0ir4Mcnr4qQQ5e1Ukc3i7UfE2XcrwKK2LIPIqE5jxMRxO6GbI3cv//ztXDsXwEWT3BHOGh3A==",
-      "dev": true
+      "dev": true,
+      "requires": {}
     },
     "postcss-discard-overridden": {
       "version": "5.1.0",
       "resolved": "https://registry.npmjs.org/postcss-discard-overridden/-/postcss-discard-overridden-5.1.0.tgz",
       "integrity": "sha512-21nOL7RqWR1kasIVdKs8HNqQJhFxLsyRfAnUDm4Fe4t4mCWL9OJiHvlHPjcd8zc5Myu89b/7wZDnOSjFgeWRtw==",
-      "dev": true
+      "dev": true,
+      "requires": {}
     },
     "postcss-loader": {
       "version": "6.2.1",
@@ -17503,7 +17539,8 @@
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/postcss-modules-extract-imports/-/postcss-modules-extract-imports-3.0.0.tgz",
       "integrity": "sha512-bdHleFnP3kZ4NYDhuGlVK+CMrQ/pqUm8bx/oGL93K6gVwiclvX5x0n76fYMKuIGKzlABOy13zsvqjb0f92TEXw==",
-      "dev": true
+      "dev": true,
+      "requires": {}
     },
     "postcss-modules-local-by-default": {
       "version": "4.0.0",
@@ -17538,7 +17575,8 @@
       "version": "5.1.0",
       "resolved": "https://registry.npmjs.org/postcss-normalize-charset/-/postcss-normalize-charset-5.1.0.tgz",
       "integrity": "sha512-mSgUJ+pd/ldRGVx26p2wz9dNZ7ji6Pn8VWBajMXFf8jk7vUoSrZ2lt/wZR7DtlZYKesmZI680qjr2CeFF2fbUg==",
-      "dev": true
+      "dev": true,
+      "requires": {}
     },
     "postcss-normalize-display-values": {
       "version": "5.1.0",
@@ -19017,6 +19055,14 @@
         }
       }
     },
+    "vue-router": {
+      "version": "4.0.14",
+      "resolved": "https://registry.npmjs.org/vue-router/-/vue-router-4.0.14.tgz",
+      "integrity": "sha512-wAO6zF9zxA3u+7AkMPqw9LjoUCjSxfFvINQj3E/DceTt6uEz1XZLraDhdg2EYmvVwTBSGlLYsUw8bDmx0754Mw==",
+      "requires": {
+        "@vue/devtools-api": "^6.0.0"
+      }
+    },
     "vue-style-loader": {
       "version": "4.1.3",
       "resolved": "https://registry.npmjs.org/vue-style-loader/-/vue-style-loader-4.1.3.tgz",
@@ -19338,7 +19384,8 @@
           "version": "8.5.0",
           "resolved": "https://registry.npmjs.org/ws/-/ws-8.5.0.tgz",
           "integrity": "sha512-BWX0SWVgLPzYwF8lTzEy1egjhS4S4OEAHfsO8o65WOVsrnSRGaSiUaa9e0ggGlkMTtBlmOpEXiie9RUcBO86qg==",
-          "dev": true
+          "dev": true,
+          "requires": {}
         }
       }
     },
@@ -19465,7 +19512,8 @@
       "version": "7.5.7",
       "resolved": "https://registry.npmjs.org/ws/-/ws-7.5.7.tgz",
       "integrity": "sha512-KMvVuFzpKBuiIXW3E4u3mySRO2/mCHSyZDJQM5NQ9Q9KHWHWh0NHgfbRMLLrceUK5qAL4ytALJbpRMjixFZh8A==",
-      "dev": true
+      "dev": true,
+      "requires": {}
     },
     "y18n": {
       "version": "5.0.8",
diff --git a/package.json b/package.json
index f08494d..53fb002 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,8 @@
   },
   "dependencies": {
     "core-js": "^3.8.3",
-    "vue": "^3.2.13"
+    "vue": "^3.2.13",
+    "vue-router": "^4.0.14"
   },
   "devDependencies": {
     "@babel/core": "^7.12.16",
diff --git a/src/App.vue b/src/App.vue
index 591a031..6080660 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -1,17 +1,21 @@
 <template>
-  <img alt="Vue logo" src="./assets/logo.png">
-  <HelloWorld msg="Welcome to Your Vue.js App"/>
+  <h1>Sunscreen</h1>
+  <router-view />
+  <div class="footer">
+    <p>
+      Source for sun time calculations: Sánchez-Pérez, J.F., Vicente-Agullo, D.,
+      Barberá, M. et al. Relationship between ultraviolet index (UVI) and
+      first-, second- and third-degree sunburn using the Probit methodology. Sci
+      Rep 9, 733 (2019). https://doi.org/10.1038/s41598-018-36850-x
+    </p>
+    <p>Source for weather data: OpenWeatherMap. https://openweathermap.org/</p>
+  </div>
 </template>
 
 <script>
-import HelloWorld from './components/HelloWorld.vue'
-
 export default {
-  name: 'App',
-  components: {
-    HelloWorld
-  }
-}
+  name: "App",
+};
 </script>
 
 <style>
@@ -23,4 +27,14 @@ export default {
   color: #2c3e50;
   margin-top: 60px;
 }
+
+.footer {
+  position: fixed;
+  left: 0;
+  bottom: 0;
+  width: 100%;
+  background-color: lightyellow;
+  text-align: left;
+  padding: 1em;
+}
 </style>
diff --git a/src/StartPage.vue b/src/StartPage.vue
new file mode 100644
index 0000000..d2db1f4
--- /dev/null
+++ b/src/StartPage.vue
@@ -0,0 +1,45 @@
+<template>
+  <form :action="urlAction">
+    <div>
+      Select skin type:
+      <select v-model="skinType" required>
+        <option disabled value="">Skin Type:</option>
+        <option value="0">I (Pale)</option>
+        <option value="1">II (Fair)</option>
+        <option value="2">III (Light Brown)</option>
+        <option value="3">IV (Olive Brown)</option>
+      </select>
+    </div>
+
+    <div>
+      Location: <input type="number" v-model="lat" step="any" required /><input
+        type="number"
+        v-model="lon"
+        step="any"
+        required
+      />
+    </div>
+
+    <button type="submit">Go</button>
+  </form>
+</template>
+
+<script>
+export default {
+  name: "StartPage",
+
+  data() {
+    return {
+      skinType: "",
+      lat: "",
+      lon: "",
+    };
+  },
+
+  computed: {
+    urlAction() {
+      return "/" + this.skinType + "/" + +this.lat + "/" + this.lon + "/";
+    },
+  },
+};
+</script>
diff --git a/src/SunscreenPage.vue b/src/SunscreenPage.vue
new file mode 100644
index 0000000..fe48c6f
--- /dev/null
+++ b/src/SunscreenPage.vue
@@ -0,0 +1,21 @@
+<template>
+  <SunTime :skin="skin" :lat="lat" :lon="lon" />
+</template>
+
+<script>
+import SunTime from "./components/SunTime.vue";
+
+export default {
+  name: "SunscreenPage",
+  components: {
+    SunTime,
+  },
+  data: function () {
+    return {
+      skin: this.$route.params.skin,
+      lat: this.$route.params.lat,
+      lon: this.$route.params.lon,
+    };
+  },
+};
+</script>
diff --git a/src/components/SunTime.vue b/src/components/SunTime.vue
new file mode 100644
index 0000000..1277f9a
--- /dev/null
+++ b/src/components/SunTime.vue
@@ -0,0 +1,62 @@
+<template>
+  <div v-if="loaded">
+    <div v-if="minutesToBurn < 100">
+      <div style="font-size: 12em">{{ minutesToBurn }}</div>
+      <div style="font-size: 2em">minutes until sunburn</div>
+    </div>
+    <div v-else>
+      <div style="font-size: 8em">No risk!</div>
+    </div>
+  </div>
+</template>
+
+<script>
+// Calculate the intensity and then the dose; compare them to the dose limits
+// Source: https://www.nature.com/articles/s41598-018-36850-x
+function get_dose_per_minute_for_uv_index(uv_index) {
+  let uv_intensity = 15.1 * uv_index + 35.5; // W/m²
+  uv_intensity /= 1000.0; // kW/m²
+
+  let dose_per_second = Math.pow(uv_intensity, 4 / 3);
+  return dose_per_second * 60.0;
+}
+
+export default {
+  name: "SunTime",
+
+  props: {
+    skin: String,
+    lat: String,
+    lon: String,
+  },
+
+  data() {
+    return {
+      minutesToBurn: 0,
+      loaded: false,
+    };
+  },
+
+  async mounted() {
+    // Dosage where sunburn occurs for each skin type (I, II, III, IV)
+    // Source: https://www.nature.com/articles/s41598-018-36850-x
+    let sunburn_begin_doses = [84.9, 115, 143, 195];
+
+    let apiKey = "db1a2f091413e833154a6de21adb3076";
+
+    let openweathermap_onecall = await fetch(
+      `https://api.openweathermap.org/data/2.5/onecall?lat=${this.lat}&lon=${this.lon}&exclude=hourly,daily&appid=${apiKey}`
+    );
+    openweathermap_onecall = await openweathermap_onecall.json();
+    console.log(openweathermap_onecall);
+
+    let current_uvi = openweathermap_onecall["current"]["uvi"];
+
+    this.minutesToBurn = Math.floor(
+      sunburn_begin_doses[this.skin] /
+        get_dose_per_minute_for_uv_index(current_uvi)
+    );
+    this.loaded = true;
+  },
+};
+</script>
\ No newline at end of file
diff --git a/src/main.js b/src/main.js
index 01433bc..fa26040 100644
--- a/src/main.js
+++ b/src/main.js
@@ -1,4 +1,7 @@
 import { createApp } from 'vue'
 import App from './App.vue'
+import router from './router'
 
-createApp(App).mount('#app')
+createApp(App)
+    .use(router)
+    .mount('#app')
diff --git a/src/router/index.js b/src/router/index.js
new file mode 100644
index 0000000..a8bdc61
--- /dev/null
+++ b/src/router/index.js
@@ -0,0 +1,23 @@
+import { createWebHistory, createRouter } from "vue-router";
+import StartPage from "@/StartPage.vue";
+import SunscreenPage from "@/SunscreenPage.vue";
+
+const routes = [
+    {
+        path: "/",
+        name: "StartPage",
+        component: StartPage,
+    },
+    {
+        path: "/:skin/:lat/:lon",
+        name: "SunscreenPage",
+        component: SunscreenPage,
+    },
+];
+
+const router = createRouter({
+    history: createWebHistory(),
+    routes,
+});
+
+export default router;
\ No newline at end of file