diff --git a/calculator.pro b/calculator.pro
new file mode 100644
index 0000000000000000000000000000000000000000..45d1f0bad23be2edcff8b305029f7f3f3532beca
--- /dev/null
+++ b/calculator.pro
@@ -0,0 +1,26 @@
+QT       += core gui
+
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+
+CONFIG += c++11
+CONFIG+=sdk_no_version_check
+
+# You can make your code fail to compile if it uses deprecated APIs.
+# In order to do so, uncomment the following line.
+#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
+
+SOURCES += \
+    button.cpp \
+    calculator.cpp \
+    main.cpp \
+    mainwindow.cpp
+
+HEADERS += \
+    button.h \
+    calculator.h \
+    mainwindow.h
+
+# Default rules for deployment.
+qnx: target.path = /tmp/$${TARGET}/bin
+else: unix:!android: target.path = /opt/$${TARGET}/bin
+!isEmpty(target.path): INSTALLS += target