---
title: "Why labels affect your bill | Grafana Labs"
description: "Most billing surprises in Grafana Cloud trace back to labeling decisions made at instrumentation time"
---

> For a curated documentation index, see [llms.txt](/llms.txt). For the complete documentation index, see [llms-full.txt](/llms-full.txt).

## Why labels affect your bill

A **label** is a name-value tag attached to a metric or log, such as `env=prod`. Every label you attach to a metric or log multiplies the number of unique series or streams you generate. Most billing surprises in Grafana Cloud trace back to labeling decisions made at instrumentation time, often by accepting defaults without realizing their cost impact.

This journey teaches you the math behind that multiplication, how to inspect it in your own stack, and how to choose labels deliberately for metrics and logs.