diff --git a/float16.go b/float16.go
index c315091..e751e54 100644
--- a/float16.go
+++ b/float16.go
@@ -222,6 +222,11 @@ func (f Float16) String() string {
 	return strconv.FormatFloat(float64(f.Float32()), 'f', -1, 32)
 }
 
+// MarshalJSON satisfies json marshaller
+func (f Float16) MarshalJSON() ([]byte, error) {
+	return []byte(f.String()), nil
+}
+
 // f16bitsToF32bits returns uint32 (float32 bits) converted from specified uint16.
 func f16bitsToF32bits(in uint16) uint32 {
 	// All 65536 conversions with this were confirmed to be correct
diff --git a/float16_bench_test.go b/float16_bench_test.go
index bd9fbfa..28c08b2 100644
--- a/float16_bench_test.go
+++ b/float16_bench_test.go
@@ -86,3 +86,15 @@ func BenchmarkString(b *testing.B) {
 	}
 	resultStr = result
 }
+
+func BenchmarkMarshalJson(b *testing.B) {
+	var result []byte
+
+	pi32 := float32(math.Pi)
+	pi16 := float16.Fromfloat32(pi32)
+
+	for i := 0; i < b.N; i++ {
+		result, _ = pi16.MarshalJSON()
+	}
+	resultStr = string(result)
+}
diff --git a/float16_test.go b/float16_test.go
index 104a8de..6b1a614 100644
--- a/float16_test.go
+++ b/float16_test.go
@@ -616,6 +616,20 @@ func TestString(t *testing.T) {
 
 }
 
+func TestMarshalJson(t *testing.T) {
+	f16 := float16.Fromfloat32(1.5)
+	s, _ := f16.MarshalJSON()
+	if string(s) != "1.5" {
+		t.Errorf("Float16(1.5).MarshalJson() returned %s, wanted 1.5", s)
+	}
+
+	f16 = float16.Fromfloat32(3.14159)
+	s, _ = f16.MarshalJSON()
+	if string(s) != "3.140625" {
+		t.Errorf("Float16(3.141593).MarshalJson() returned %s, wanted 3.140625", s)
+	}
+}
+
 func TestIsInf(t *testing.T) {
 
 	f16 := float16.Float16(0)