diff --git a/vlib/gg/text_rendering.v b/vlib/gg/text_rendering.v
index 63e58e5ace..d7b388cf88 100644
--- a/vlib/gg/text_rendering.v
+++ b/vlib/gg/text_rendering.v
@@ -94,11 +94,21 @@ pub fn (ctx &Context) text_width(s string) int {
 	return int((buf[2] - buf[0]) / ctx.scale)
 }
 
-pub fn (ft &Context) text_height(s string) int {
-	return 0
+pub fn (ctx &Context) text_height(s string) int {
+	if !ctx.font_inited {
+		return 0
+	}
+	mut buf := [4]f32
+	C.fonsTextBounds(ctx.ft.fons, 0, 0, s.str, 0, buf)
+	return int((buf[3] - buf[1]) / ctx.scale)
 }
 
-pub fn (ft &Context) text_size(s string) (int, int) {
-	return 0,0
+pub fn (ctx &Context) text_size(s string) (int, int) {
+	if !ctx.font_inited {
+		return 0,0
+	}
+	mut buf := [4]f32
+	C.fonsTextBounds(ctx.ft.fons, 0, 0, s.str, 0, buf)
+	return int((buf[2] - buf[0]) / ctx.scale), int((buf[3] - buf[1]) / ctx.scale)
 }