---
title: "401k growth projection"
method: GET
path: "/api/v1/calculate/401k"
---

# 401k growth projection

`GET /api/v1/calculate/401k`

## Request

- Base URL: `https://everycalc.xyz`
- URL: `https://everycalc.xyz/api/v1/calculate/401k`
- Auth: none declared

Projected 401k balance with employee contributions capped at 24500 per year, plus an employer match, compounded annually. Results match the interactive calculator at everycalc.xyz; every response includes a calculator_url deep link to it.

## Query parameters

- `current_balance` number, required
- `annual_salary` number, required
- `contribution_pct` number, required
- `match_pct` number, required
- `match_cap_pct` number, required
- `years` number, required
- `annual_return_pct` number, required

## Response `200`

Calculation result.

## Other responses

- `400`: Invalid input.

---

[API](https://skmtc.dev/everycalc/apis/everycalc-api.md) · [All operations](https://skmtc.dev/everycalc/apis/everycalc-api/llms.txt) · [OpenAPI document](https://skmtc.dev/everycalc/apis/everycalc-api/revisions/a4bd5db0868a?raw)
