How many pieces does the LEGO Robot Inventor (51515-1) have?

The LEGO Robot Inventor set (51515-1) contains 949 pieces. It was released in 2020 as part of the LEGO Mindstorms theme.

How can I find missing parts for LEGO set 51515-1?

On BrickMissing you can check which parts from the LEGO Robot Inventor (51515-1) you already own. Add your LEGO collection and we'll show exactly which of the 949 pieces you're missing and which you already have.

Can I build the LEGO Robot Inventor with parts I already have?

Use BrickMissing's free parts checker to find out. Add LEGO sets you own to your collection and we'll cross-reference all 949 parts to show your buildability percentage and which specific pieces you still need.

What theme is the LEGO Robot Inventor from?

The LEGO Robot Inventor (51515-1) belongs to the LEGO Mindstorms theme. You can browse all Mindstorms sets on BrickMissing to find more sets from this theme.

Robot Inventor

51515-1 Mindstorms 2020 949 parts 9.7% catalog rarity Intermediate

The LEGO Mindstorms Robot Inventor 51515-1 set introduces programmable robotics, built from 949 pieces. Builders construct five distinct robots and vehicles, each motorized for diverse actions. At its core, an intelligent Hub features a 5x5 LED screen, a 6-axis gyro, and a speaker, providing dynamic feedback. These creations are programmed using a drag-and-drop coding environment, inspired by Scratch, enabling completion of activities and missions. The system employs motors and sensors, encouraging exploration of engineering principles and computation.

Parts Inventory

🧱 949 parts

Showing the first 12 rows of the parts list (949 pieces in total). The full list loads automatically.

Color	Qty	LEGO price each
Black	2×	€0,18 View at LEGO → View
Dark Bluish Gray	2×	€0,15 View at LEGO → View
Dark Bluish Gray	14×	€0,29 View at LEGO → View
Black	4×	€0,25 View at LEGO → View
White	2×	€0,38 View at LEGO → View
White	2×	€0,38 View at LEGO → View
Light Bluish Gray	2×	€0,36 View at LEGO → View
White	2×	€1,13 View at LEGO → View
Reddish Brown	2×	€0,11 View at LEGO → View
Tan	4×	€0,36 View at LEGO → View
White	10×	€0,05 View at LEGO → View
Black	6×	€0,05 View at LEGO → View

I already have an account

Catalog rarity

How common are the parts in Robot Inventor?

9.7%Moderate rarity

more commonless common

14 of 145 recorded part+color combinations appear in 3 or fewer sets in our catalog. This does not measure replacement availability or price.

Theme average

8.4%

All sets

6.7%

Least common in our catalog

Technic Beam 3 x 5 L-Shape Thick · Dark Turquoise · only this set in our catalogSensor, Distance, SPIKE · White · only this set in our catalogTechnic Base Frame 11 x 19 · Dark Turquoise · only this set in our catalog

How we calculate this →