miles per hour → feet per second

Convert miles per hour to feet per second (speed). Pass ?value=N.

1 miles per hour = 1.46666666667 feet per second. To convert, multiply the number of miles per hour by 1.46666666667. The reverse direction is feet per second → miles per hour.

Common miles per hour to feet per second values

miles per hour	feet per second
1 miles per hour	1.46666666667 feet per second
2 miles per hour	2.93333333333 feet per second
5 miles per hour	7.33333333333 feet per second
10 miles per hour	14.6666666667 feet per second
25 miles per hour	36.6666666667 feet per second
100 miles per hour	146.666666667 feet per second
1000 miles per hour	1466.66666667 feet per second

Input

Field	Type	Description
value *	string	Numeric value to convert

Example output

{
  "value": 1,
  "from": "miles-per-hour",
  "to": "feet-per-second",
  "result": 1.466667
}

Try it — see the 402 challenge (free)

curl -i "https://agent402.tools/api/convert/miles-per-hour-to-feet-per-second?value=1"

The response is HTTP 402 Payment Required with exact payment requirements. Any x402 v2 client pays automatically and retries:

Paid call (JavaScript agent)

import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client();
registerExactEvmScheme(client, { signer: privateKeyToAccount(KEY) });
const payFetch = wrapFetchWithPayment(fetch, client);

const res = await payFetch("https://agent402.tools/api/convert/miles-per-hour-to-feet-per-second?value=1");

No wallet? Pay with compute

This is a pure-CPU tool, so an agent without a wallet can pay with proof-of-work instead of USDC: fetch a challenge, solve it (16 leading zero bits), and resend with the X-Pow-Solution header.

import { createHash } from "node:crypto";
const lz = (b) => { let t = 0; for (const x of b) { if (!x) { t += 8; continue; } t += Math.clz32(x) - 24; break; } return t; };
const c = await (await fetch("https://agent402.tools/api/pow/challenge?slug=convert-miles-per-hour-to-feet-per-second")).json();
let n = 0;
while (lz(createHash("sha256").update(c.challenge + ":" + n).digest()) < c.difficulty) n++;
await fetch("https://agent402.tools/api/convert/miles-per-hour-to-feet-per-second", { method: "GET", headers: { "X-Pow-Solution": c.token + ":" + n } });

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